| | Dimethyl methylphosphonate Basic information |
| | Dimethyl methylphosphonate Chemical Properties |
| Melting point | <50° | | Boiling point | 181 °C(lit.) | | density | 1.145 g/mL at 25 °C(lit.) | | vapor pressure | <0.1 mm Hg ( 20 °C) | | refractive index | n20/D 1.413(lit.) | | Fp | 156 °F | | solubility | Chloroform, Methanol (Slightly, Heated) | | pka | pKa (20°) in water: 2.37 | | form | Liquid | | color | Clear colorless | | Specific Gravity | 1.16 | | Water Solubility | >=10 g/100 mL at 21 ºC | | Merck | 14,3391 | | BRN | 878263 | | Stability: | Stability Combustible. Incompatible with strong oxidizing agents, strong bases. May soften some rubbers or plastics. Hydrolyzes slowly in contact with water. | | LogP | -0.61 | | Dissociation constant | 2.37 at 20℃ | | CAS DataBase Reference | 756-79-6(CAS DataBase Reference) | | NIST Chemistry Reference | Phosphonic acid, methyl-, dimethyl ester(756-79-6) | | EPA Substance Registry System | Dimethyl methylphosphonate (756-79-6) |
| | Dimethyl methylphosphonate Usage And Synthesis |
| Chemical Properties | colourless liquid | | Uses | As a flame retardant, a preignition
additive for gasoline, an antifoam agent, a plasticizer
and stabilizer, a textile conditioner, and
an antistatic agent; used experimentally to
mimic the physical and spectroscopic (but not
biological) properties of anticholinesterase
agents | | Uses | Dimethyl methylphosphonate is used as a catalyst and a reagent in organic synthesis for the conversion of esters to ketophosphonates. It is an additive for the synthesis of unsaturated polyester resin which has flame retardant high phosphorous and UV-cured epoxy acrylate. It finds application as hydraulic fluids as well. | | Uses | NMR probe for cell volume. Flame retardant. Simulant for nerve agents. | | Synthesis Reference(s) | Synthetic Communications, 20, p. 239, 1990 DOI: 10.1080/00397919008052289 | | General Description | Clear colorless liquid with a pleasant odor. | | Air & Water Reactions | Highly flammable. Water soluble. Hydrolyzes slowly upon contact with water. | | Reactivity Profile | Dimethyl methylphosphonate is incompatible with strong oxidizing agents and strong bases. Dimethyl methylphosphonate reacts with organic halides at 302-392° F. When heated to temperatures greater than 302° F, Dimethyl methylphosphonate will act as an alkylating agent with basic nitrogen compounds and phenols. Dimethyl methylphosphonate reacts with enol lactones. Dimethyl methylphosphonate has plasticizing properties and may soften or deteriorate some plastics and elastomers (particularly vinyl-based resins, neoprene and natural rubbers) upon contact. | | Health Hazard | Dimethyl methylphosphonate
(DMMP) administered to male rats is a reproductive
toxicant and carcinogen. Effects in
humans are unknown. | | Fire Hazard | Dimethyl methylphosphonate is combustible. | | Safety Profile | Moderately toxic by
intravenous route. Experimental
reproductive effects. Questionable
carcinogen with experimental carcinogenic
data. Mutation data reported. An
experimental nerve gas stimulant. A flame
retardant. When heated to decomposition it
emits toxic fumes of POx |
| | Dimethyl methylphosphonate Preparation Products And Raw materials |
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