Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

First-aid measures

- If INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.

- When in doubt or symptoms persist, seek medical attention

- If SWALLOWED: Rinse mouth.Do NOT induce vomiting.NEVER make an unconscious person vomit or drink fluids.

- If vomiting occurs turn patient on side

- Rinse mouth with water (do not swallow)

- Seek medical advice

- IF IN EYES:Rinse cautiously with water for several minutes.Remove contact lenses,if present and easy to do.Continue rinsing.

- Seek medical attention if irritation persists

- IF ON SKIN:Gently wash with plenty of soap and water.

- Seek medical attention if irritation persists

- Contaminated clothing should be laundered before reuse

- Can cause damage to the eyes

- Can cause damage to the skin

Fire-fighting measures

- Extinguishing media: Not flammable. In case of fire use extinguishing media appropriate to surrounding conditions

- Special hazards arising from the substance or mixture: Smoke from fires is corrosive. Take precautions to protect personnel from exposure. Low hazard expected under normal conditions of use.

- Advice for firefighters: Keep container(s) exposed to fire cool, by spraying with water. Keep upwind. Prevent run off water from entering drains if possible. Wear chemical protection suit and positive-pressure breathing apparatus.

Accidental release measures

- Personal precautions, protective equipment and emergency procedures: Wear protective clothing. Shut off source of leak if safe to do so. Spillage causes slippery surface. Wash thoroughly after dealing with spillage.

- Environmental precautions: Do not allow to enter public sewers and watercourses

- Methods and material for containment and cleaning up: Absorb spillage in inert material and shovel up. Collect as much as possible in clean container for reuse or disposal. Place in sealable container. Seal containers and label them. Remove contaminated material to safe location for subsequent disposal. Disposal should be in accordance with local, state or national legislation.

Handling and storage

- Precautions for safe handling: Wear protective clothing. Do not eat,drink or smoke when using this product. Use good personal hygiene practices.

- Conditions for safe storage, including any incompatibilities: Store in a well-ventilated place and keep container tightly closed. Protect from frost.

- Specific end use(s): The Intended use is industrial and institutional markets.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:
UN 3265
Shipping information
Proper shipping name and description:
Chemical name:
Methyl dihydrogen phosphate
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Marine transport (UN RTDG/IMDG)

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Exposure controls / personal protection

- Control parameters: No exposure limits have been set for this substance

- Exposure controls: Eyewash bottles should be available. Wear suitable protective clothing, including eye/face protection and gloves (neoprene or nitrile are recommended). For exposure of 1 to 4 hours use gloves made of :neoprene or nitrile  thickness (1.45 to 1.85 mm).Discard gloves as soon as any signs of degradation are noticed.

Stability and reactivity


-       Reacts slowly with alkalis (strong bases)

10.2 Chemical stability

-       Considered stable under normal conditions

Possibility of hazardous reactions

-       No hazardous reactions known if used for its intended purpose

10.4 Conditions to avoid

-       Avoid contact with alkalis (strong bases)

-       Keep away from frost

10.5 Incompatible materials

-       Avoid contact with alkali metals

10.6 Hazardous decomposition products

- Decomposition products may include phosphorous compounds and oxides of carbon

Disposal considerations

- Waste treatment methods: Do not discharge into drains or the environment, dispose to an authorised waste collection point. Disposal should be in accordance with local, state or national legislation.