MONOMETHYL PHOSPHATE

PRODUCT IDENTIFICATION

CAS NO.

812-00-0

MONOMETHYL PHOSPHATE

EINECS NO. 212-379-1
FORMULA C2H7O4P
MOL WT. 112.02

H.S. CODE

 

TOXICITY

 
SYNONYMS Dihydrogen methyl phosphate; Methyl acid phosphate;
O-methylphosphate; (Methoxy)phosphonate; Methyl orthophosphoric acid; methyl phosphoric acid; monomethyl dihydrogen phosphate; monomethyl phosphate; phosphoric acid, monomethyl ester; Dihidrogenofosfato de metilo; Dihydrogénophosphate de méthyle;
SMILES  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES  (MIXTURE OF MONO AND DI ESTERS)

PHYSICAL STATE

clear oily liquid

MELTING POINT

BOILING POINT > 170 C (Decomposes)
SPECIFIC GRAVITY 1.35 - 1.45

SOLUBILITY IN WATER

Insoluble

pH
VAPOR DENSITY

REFRACTIVE INDEX

NFPA RATINGS Health: 3; Flammability: 1; Reactivity: 1
FLASH POINT

1.411

STABILITY Stable under ordinary conditions

APPLICATIONS

Mono and dibasic phosphate esters produced by the reaction of either alcohols, alcohol ethoxylates or phenyl ethoxylates with polyphosphoric acid or phosphorous pentoxide are anionic surfactants which have the main feature of the stability in alkaline conditions over other surfactants. They have a wide range of properties including outstanding wetting, emulsification, lubrication, coupling activity and detergency. They exhibit the properties of anti-wear and corrosion inhibition either as free esters or in the forms of metal and amine salts. They are used in:
  • Heavy duty alkaline cleaning products
  • Laundry Detergents
  • Emulsion polymerisation
  • Textile auxiliaries
  • Acid cleaners
  • Metal working fluids
  • Emulsifiers
  • Wetters
  • Dispersants
  • Water based lubricants
  • Intermediate for the synthesis of other anionic surfactants
 

Phosphoric acid alkyl esters are also used as alkylation agent for nitrogen heterocyclic compounds and as catalysts to produce phenolic and urea resins. They are used flame retarding plasticizers for cellulose esters, lacquers, plastic and vinyl resins as well as as dispersing agents in plastisols. They are used as solvents in liquid-liquid extractant or separation agent of metals. They are is used as heat exchange media and as pigment grinding assistants and antifoam agents.

SALES SPECIFICATION (MIXTURE OF MONO AND DI ESTERS)

APPEARANCE

clear, liquid

ACID NUMBER 600 min (mg KOH/kg)
COLOR, APHA 60 max
TRANSPORTATION
PACKING 250kgs in drum
HAZARD CLASS 8 (Packing Group: II)
UN NO. 3265
OTHER INFORMATION
Hazard Symbols: C, Risk Phrases: 34, Safety Phrases: 25-28A-36/36/39-37-45