methyl dihydrogen phosphate Property

Boiling point:

250.1±23.0 °C(Predicted)

Density 

1.587±0.06 g/cm3(Predicted)

vapor pressure 

0.089Pa at 25℃

pka

1.81±0.10(Predicted)

Water Solubility 

435g/L at 25℃

LogP

-0.71 at 25℃

EPA Substance Registry System

Monomethyl phosphate (812-00-0)

Safety

RIDADR 

3265

HazardClass 

8

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P363Wash contaminated clothing before reuse.

P405Store locked up.

P501Dispose of contents/container to..…

methyl dihydrogen phosphate Chemical Properties,Usage,Production

Uses

Monomethyl phosphate is a useful building block and byproduct of the degradation of black phosphorous in protic solvents.

Definition

ChEBI: A monoalkyl phosphate epitope having methyl as the alkyl group.

General Description

Clear very light amber liquid.

Air & Water Reactions

Water soluble.

Reactivity Profile

Susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides. Can be neutralized with alkalis or amines to give water-soluble salts.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition methyl dihydrogen phosphate emits toxic fumes of phosphorous oxides.

Fire Hazard

methyl dihydrogen phosphate is probably combustible.