Quick access to all of chesse.org’s tools, templates and checklists.
The school must have routines in place for regular inspection and maintenance of the facilities and equipment such as fume cupboards, emergency equipment and stored chemicals.
For all practical work that includes hazardous chemicals or hazardous equipment, the teacher or a laboratory technician is required to do a risk assessment.
Further reading: Risk Assessment
Chemicals in the science classroom must be labelled in accordance to EU regulations. If you make your own solutions, they should also be labelled to allow identification and proper handling.
Further reading: Labelling
Some chemicals require special storage conditions, and some chemicals should not be stored together.
- Template: Routines for storage (Word)
- Checklist for inspecting stored chemicals and solutions (Word)
- Checklist for monitoring use of chemicals (Word)
Further reading: Storage
The school is legally required to maintain an updated chemical inventory – a collection of safety data sheets for all chemicals and solutions used.
All schools are legally required to dispose of chemicals in accordance to regulations and in a way that ensures proper waste management.
Interactive decision tree for choosing waste storage containers:
Is your waste hazardous chemical waste?
- Yes
Does your waste contain organic substance?
- Yes
Is your waste halogenated?
- Yes
Container: All halogenated organic substances and waste from halogenation reactions of organic substances
- No
Container: Non-halogenated organic substances
- Yes
- No
Does your waste contain toxic inorganic salts?
- Yes
Container: Solutions of toxic inorganic salts
- No
Is your waste acidic?
- Yes
Container: Acidic solutions
- No
Is your waste alkaline?
- Yes
Container: Alkaline solutions
- No
Please start over
- Yes
- Yes
- Yes
- Yes
- No
Is your waste a laboratory waste?
- Yes
Is your waste heavily contaminated?
- Yes
Is your waste pointed and/or sharp?
- Yes
Container: pointed and/or sharp contaminated solid waste
- No
Container: Other contaminated solid waste
- Yes
- No
Is your waste a glass not defined as recyclable?
- Yes
Container: Uncontaminated laboratory glass
- No
Recycle in non laboratory bins
- Yes
- Yes
- No
Recycle in non laboratory bins
- Yes
Further reading: Waste Management
Unfortunately, accidents happen. When they do, there should be routines in place for how accidents are handled.
Everyone who works with hazardous chemicals is legally required to have proper training and information.
When it comes to taking care of the chemistry lab, many tasks do not fit into teacher’s ordinary pedagogical work. To ensure that chemical safety is assured in the science department, it is a good idea that the management of the school (e.g. the principal) specifies these tasks in writing.
Examples of tasks that can be distributed to a suitably qualified person at the science department:
- Organising the health and safety assessment of the department
- Safe storage of chemicals used in education
- Inspection and maintenance of the equipment in the science department
When an employee is assigned a safety task, it is the employer’s responsibility to provide the resources required to do the work.
We recommend that students receive a course in basic laboratory safety at the beginning of each year, adapted to the needs and activities of the age group. This includes learning the rules that apply in the science or chemistry laboratory and how to read and interpret hazard pictograms. Making the rules together with the students through discussion can make them easier to remember and increase compliance.
It can also be a good idea to train students in specific laboratory techniques, for example correct use of gas burners or pipetting techniques, to ensure correct handling and minimise the risk of accidents. In such cases, awarding a certificate or a badge as proof of completed training can serve to document the student’s mastery of practical skills.
- Template: Routines for student training in chemical safety (Word)
- Example: Safety rules for the science classroom (Word)
- Example: Detailed safety rules for the chemistry classroom (Word)
- Template: Gas burner instructions (Word)
- Template: Gas burner certificate (PowerPoint)
- Template: Information for students and guardians (Word)
Every task involving the management of risks needs to be subject to a documented risk assessment. The level of detail in the risk assessment should be proportionate to the risk. If different tasks involve the same type of chemical risks, risk assessments can be assessed together.
A risk assessment of practical work requires three steps:
- Identify the hazards associated with the chemicals, equipment and procedures you are planning.
- Assess the risks connected with each part of the experiment, demonstration or preparation.
- Decide what precautionary measures should be in place to eliminate the hazard, or to control the risks you have identified.
The risk assessment should be documented, and include:
- the class, laboratory or classroom concerned
- all the hazards that you identified
- the levels of risk associated with these hazards
- the situations where there is need to eliminate or reduce a risk
- the measures that should be taken to eliminate the hazard or control the risk
- which equipment should be available during the experiment or demonstration, or on standby in case of spillage or accident
- the emergency procedures in case of an accident
Hazard Information on Common Chemicals
The list of chemicals below contains hazard information on some common solutions used in chemistry education. The hazard information depends on the concentration of the solution, so make sure to choose the right concentration interval.
If the substance is not in the list below, try to find a safety data sheet for a solution with the same substance and concentration. Use the hazard pictogram(s), signal word and hazard statements in the safety data sheet on the label. Choose the precautionary statements that are relevant to how the solution will be used in the classroom. If a safety data sheet with the right concentration is not available, use a safety data sheet for a more concentrated solution or for the pure substance. In this case, this may over classify the solution. However, better safe than sorry.
The CheSSE Label Generator
The label generator generates labels with the appropriate label elements. These are based on harmonized classification and may differ slightly from information in safety data sheets from different suppliers.
When clicking on a chemical in the list, the classification for different concentration intervals is shown. It is then possible to generate a label by clicking “generate label” for the right concentration interval. The generated label can be copied and pasted for example into a textbox in a Word document. In this way it is possible to print several labels on the same page.
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| 17.4 M > C ≥ 13.3 M 100 % > C ≥ 80 % Generate label |   | Danger | Flammable liquid and vapour. Causes severe skin burns and eye damage. | Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
| 13.3 M > C ≥ 4.1 M 80 % > C ≥ 25 % Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
| 4.1 M > C ≥ 1.6 M 25 % > C ≥ 10 % Generate label |  | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 1.6 M C < 10 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Acids Store below eye level. Concentrations above 80 % should be stored in the cabinet with flamable substances. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 4.6 M C ≥ 25 % Generate label | | Warning | Harmful if swallowed. Causes serious eye irritation. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| 4.6 M > C ≥ 1.8 M 25 % > C ≥ 10 % Generate label | | Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 1.8 M C < 10 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 20 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 13.4 M Generate label |  | Danger | Causes severe skin burns and eye damage. May cause respiratory irritation. Very toxic to aquatic life. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
13.4 M > C ≥ 2.9 M Generate label | | Danger | Causes severe skin burns and eye damage. May cause respiratory irritation. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
2.9 M > C ≥ 1.7 M Generate label | | Danger | Causes skin irritation. Causes serious eye damage. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
1.7 M > C ≥ 0.58 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.58 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Bases |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Alkaline solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 1.4 M Generate label |  | Danger | Toxic if swallowed. Harmful if inhaled. | Wash hands thoroughly after handling. IF SWALLOWED: Immediatly call a doctor. Avoid breathing dust/mist. |
1.4 M > C ≥ 1.3 M Generate label | | Warning | Harmful if swallowed. Harmful if inhaled. | Wash hands thoroughly after handling. Avoid breathing dust/mist. |
1.3 M > C ≥ 0.2 M Generate label | | Warning | Harmful if swallowed. | Wash hands thoroughly after handling. |
C < 0.2 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 5 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 1.2 M C ≥ 33 % Generate label | | Danger | Toxic if swallowed. Harmful if inhaled. Causes serious eye irritation. | Wash hands thoroughly after handling. IF SWALLOWED: Immediatly call a doctor. Avoid breathing dust/mist. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| 1.2 M > C ≥ 1.1 M 33 % > C ≥ 30 % Generate label | | Warning | Harmful if swallowed. Harmful if inhaled. Causes serious eye irritation. | Wash hands thoroughly after handling. Avoid breathing dust/mist. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| 1.1 M > C ≥ 0.38 M 30 % > C ≥ 10 % Generate label | | Warning | Harmful if swallowed. Causes serious eye irritation. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
| 0.38 M > C ≥ 0.19 M 10 % > C ≥ 5 % Generate label | | Warning | Harmful if swallowed. | Wash hands thoroughly after handling. |
| C < 0.19 M C < 5 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic Solid should be stored in cabinet: Oxidising agents. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 5 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
Generate label | | Warning | Causes serious eye irritation. Toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
| Storage | Cabinet: Bases |
|---|---|
| Waste Disposal | Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| 0.26 M > C ≥ 0.13 M 2 % > C ≥ 1 % Generate label | | Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 0.13 M C < 1 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Bases Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Alkaline solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 0.5 M Generate label | | Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.5 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Acids |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 20 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 4.09 M C ≥ 55 % Generate label | | Danger | Harmful if swallowed or in contact with skin. Causes skin irritation. Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| 4.09 M > C ≥ 1.85 M 55 % > C ≥ 25 % Generate label | | Danger | Harmful if swallowed. Causes skin irritation. Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| 1.85 M > C ≥ 0.74 M 25 % > C ≥ 10 % Generate label | | Danger | Causes skin irritation. Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| 0.74 M > C ≥ 0.22 M 10 % > C ≥ 3 % Generate label | | Danger | Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| 0.22 M > C ≥ 0.074 M 3 % > C ≥ 1 % Generate label | | Warning | Causes serious eye irritation. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
| 0.074 M > C ≥ 0.018 M 1 % > C ≥ 0.25 % Generate label | | Warning | Very toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. |
| 0.018 M > C ≥ 0.0018 M 0.25 % > C ≥ 0.025 % Generate label | | Toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. | |
| 0.0018 M > C ≥ 0.00018 M 0.025 % > C ≥ 0.0025 % Generate label | Harmful to aquatic life with long lasting effects. | Avoid release to the environment. | ||
| C < 0.00018 M C < 0.0025 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 0.25 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 1.5 M Generate label | | Warning | Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. Very toxic to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
1.5 M > C ≥ 0.5 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
0.5 M > C ≥ 0.15 M Generate label | | Warning | Very toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. |
0.15 M > C ≥ 0.015 M Generate label | | Toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. | |
0.015 M > C ≥ 0.0015 M Generate label | Harmful to aquatic life with long lasting effects. | Avoid release to the environment. | ||
C < 0.0015 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 0.25 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
Generate label | | Warning | Very toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. |
| Storage | Cabinet: Bases |
|---|---|
| Waste Disposal | Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
| Storage | Cabinet: Bases Store below eye level. |
|---|---|
| Waste Disposal | Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
Generate label | | Danger | Causes severe skin burns and eye damage. Toxic to aquatic life with long lasting effects. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| Storage | Cabinet: Bases Store below eye level. |
|---|---|
| Waste Disposal | Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 6.8 M Generate label | | Danger | Causes severe skin burns and eye damage. May cause respiratory irritation. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
6.8 M > C ≥ 2.7 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 2.7 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Acids Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
|
10 M > C ≥ 7.3 M Generate label
|
|
Danger | Harmful if swallowed. Causes serious eye damage. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
|
7.3 M > C ≥ 2.3 M Generate label
|
|
Danger | Causes serious eye damage. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
|
2.3 M > C ≥ 1.4 M Generate label
|
|
Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
|
C < 1.4 M Generate label
|
Not classified as a harmful mixture | |||
| Storage | At concentrations below 50 % hydrogen peroxide can be stored in the cabinet for acids, but should preferably be stored cold in a refrigirator. Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 10 % Small amounts should be reacted to completion or diluted below 10 % and then poored down the drain. |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 0.9 M Generate label | | Warning | Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
0.9 M > C ≥ 0.35 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.35 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 20 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 0.9 M Generate label | | Danger | Harmful if swallowed. Causes severe skin burns and eye damage. Harmful to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. |
0.9 M > C ≥ 0.18 M Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
0.18 M > C ≥ 0.11 M Generate label | | Danger | Causes skin irritation. Causes serious eye damage. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
0.11 M > C ≥ 0.036 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.036 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C = 0.1 % Generate label | Not classified as a harmful mixture | |||
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
15.8 M > C ≥ 14 M Generate label |  | Danger | May intensify fire; oxidiser. Toxic if inhaled. Causes severe skin burns and eye damage. | Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Keep away from clothing and other combustible materials. Avoid breathing vapours. Use only outdoors or in a well-ventilated area. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a doctor. Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
14 M > C ≥ 4.5 M Generate label | | Danger | Toxic if inhaled. Causes severe skin burns and eye damage. | Avoid breathing vapours. Use only outdoors or in a well-ventilated area. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a doctor. Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
4.5 M > C ≥ 2.2 M Generate label | | Danger | Harmful if inhaled. Causes severe skin burns and eye damage. | Avoid breathing vapours. Call a doctor if you fell unwell. Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
2.2 M > C ≥ 0.79 M Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
0.79 M > C ≥ 0.47 M Generate label | | Danger | Causes skin irritation. Causes serious eye damage. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
0.47 M > C ≥ 0.15 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.15 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Acids Nitric acid with C ≥ 65 % should be stored in cabinet: Oxidising agents. Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C = 0.1 % Generate label | | Danger | Highly flammable liquid and vapour. | Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Store in a well-ventilated place. |
| Storage | Cabinet: Flammables (including organic solvents) and water reactives |
|---|---|
| Waste Disposal | Container: Non-halogenated organic substances |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 2.55 M Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
2.55 M > C ≥ 1.02 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 1.02 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Acids Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 4.4 M Generate label | | Danger | Harmful if swallowed. Causes severe skin burns and eye damage. | Wash hands thoroughly after handling. Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
4.4 M > C ≥ 0.35 M Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
0.35 M > C ≥ 0.08 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.08 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Bases Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Alkaline solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 0.84 M C ≥ 10 % Generate label | | Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 0.84 M C < 10 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 20 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 1.58 M C ≥ 25 % Generate label |  | Warning | Harmful if swallowed. Suspected of damaging the unborn child. Very toxic to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Obtain special instructions before use. Wear protective gloves, protective clothing and eye protection. Avoid release to the environment. Collect spillage. |
| 1.58 M > C ≥ 0.18 M 25 % > C ≥ 3 % Generate label | | Warning | Suspected of damaging the unborn child. Very toxic to aquatic life with long lasting effects. | Obtain special instructions before use. Wear protective gloves, protective clothing and eye protection. Avoid release to the environment. Collect spillage. |
| 0.18 M > C ≥ 0.15 M 3 % > C ≥ 2.5 % Generate label | | Warning | Very toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. |
| 0.15 M > C ≥ 0.015 M 2.5 % > C ≥ 0.25 % Generate label | | Toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. | |
| 0.015 M > C ≥ 0.0015 M 0.25 % > C ≥ 0.025 % Generate label | Harmful to aquatic life with long lasting effects. | Avoid release to the environment. | ||
| C < 0.0015 M C < 0.025 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic Solid should be stored in cabinet: Oxidising agents. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 0.25 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 5.6 M C ≥ 55 % Generate label | | Danger | Harmful if swallowed, in contact with skin or if inhaled. Causes serious eye damage. Harmful to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Avoid breathing dust. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. |
| 5.6 M > C ≥ 3 M 55 % > C ≥ 30 % Generate label | | Danger | Harmful if swallowed or if inhaled. Causes serious eye damage. Harmful to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Avoid breathing dust. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. |
| 3 M > C ≥ 2.5 M 30 % > C ≥ 25 % Generate label | | Danger | Harmful if swallowed. Causes serious eye damage. Harmful to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. |
| 2.5 M > C ≥ 0.3 M 25 % > C ≥ 3 % Generate label | | Danger | Causes serious eye damage. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
| 0.3 M > C ≥ 0.1 M 3 % > C ≥ 1 % Generate label | | Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 0.1 M C < 1 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 10 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 0.29 M Generate label | | Danger | Causes severe skin burns and eye damage. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
0.29 M > C ≥ 0.17 M Generate label | | Danger | Causes skin irritation. Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
0.17 M > C ≥ 0.058 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
0.058 M > C ≥ 0.001 M Generate label | | Warning | Very toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. |
0.001 M > C ≥ 0.0001 M Generate label | | Toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. | |
0.0001 M > C ≥ 0.00001 M Generate label | Harmful to aquatic life with long lasting effects. | Avoid release to the environment. | ||
C < 0.00001 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic Solid should be stored in cabinet: Oxidising agents |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 0.25 % Container: Solutions of toxic inorganic salts |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 0.9 M C ≥ 10 % Generate label | | Warning | Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 0.9 M C < 10 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Bases |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 20 % Container: Alkaline solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C ≥ 0.5 M Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
0.5 M > C ≥ 0.125 M Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
C < 0.125 M Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Bases Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Alkaline solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 1.5 M C ≥ 15 % Generate label | | Danger | Causes severe skin burns and eye damage. | Wear eye protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water (or shower). IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. |
| 1.5 M > C ≥ 0.5 M 15 % > C ≥ 5 % Generate label | | Warning | Causes skin irritation. Causes serious eye irritation. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. |
| C < 0.5 M C < 5 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Acids Store below eye level. |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 1 % Container: Acidic solutions |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
C = 0.5 % Generate label | | Danger | Highly flammable liquid and vapour. | Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Store in a well-ventilated place. |
| Storage | Cabinet: Flammables (including organic solvents) and water reactives |
|---|---|
| Waste Disposal | Container: Non-halogenated organic substances |
| Concentration | Hazard pictogram | Signal word | H-statements | P-statements |
|---|---|---|---|---|
| C ≥ 1.5 M C ≥ 25 % Generate label | | Danger | Harmful if swallowed. Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wash hands thoroughly after handling. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| 1.5 M > C ≥ 0.18 M 25 % > C ≥ 3 % Generate label | | Danger | Causes serious eye damage. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a doctor. Avoid release to the environment. Collect spillage. |
| 0.18 M > C ≥ 0.15 M 3 % > C ≥ 2.5 % Generate label | | Warning | Causes serious eye irritation. Very toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
| 0.15 M > C ≥ 0.06 M 2.5 % > C ≥ 1 % Generate label | | Warning | Causes serious eye irritation. Toxic to aquatic life with long lasting effects. | Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical attention. Avoid release to the environment. Collect spillage. |
| 0.06 M > C ≥ 0.015 M 1 % > C ≥ 0.25 % Generate label | | Toxic to aquatic life with long lasting effects. | Avoid release to the environment. Collect spillage. | |
| 0.015 M > C ≥ 0.0015 M 0.25 % > C ≥ 0.025 % Generate label | Harmful to aquatic life with long lasting effects. | Avoid release to the environment. | ||
| C < 0.0015 M C < 0.025 % Generate label | Not classified as a harmful mixture | |||
| Storage | Cabinet: Toxic |
|---|---|
| Waste Disposal | Hazardous waste concentration limit: 0.25 % Container: Solutions of toxic inorganic salts |
Interactive decision tree:
Is your waste hazardous chemical waste?
- Yes
Does your waste contain organic substance?
- Yes
Is your waste halogenated?
- Yes
Container: All halogenated organic substances and waste from halogenation reactions of organic substances
- No
Container: Non-halogenated organic substances
- Yes
- No
Does your waste contain toxic inorganic salts?
- Yes
Container: Solutions of toxic inorganic salts
- No
Is your waste acidic?
- Yes
Container: Acidic solutions
- No
Is your waste alkaline?
- Yes
Container: Alkaline solutions
- No
Please start over
- Yes
- Yes
- Yes
- Yes
- No
Is your waste a laboratory waste?
- Yes
Is your waste heavily contaminated?
- Yes
Is your waste pointed and/or sharp?
- Yes
Container: pointed and/or sharp contaminated solid waste
- No
Container: Other contaminated solid waste
- Yes
- No
Is your waste a glass not defined as recyclable?
- Yes
Container: Uncontaminated laboratory glass
- No
Recycle in non laboratory bins
- Yes
- Yes
- No
Recycle in non laboratory bins
- Yes
To cite this page, we suggest the following format (APA 7):
Online Resources for Chemical Safety in Science Education. (2024, February 6).
Checklists and Tools.
2024/02/06