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Dimethyl methylphosphonate

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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.)
  • Flash point:156 °F
  • pkapKa (20°) in water: 2.37
  • form Liquid
  • color Clear colorless
  • Specific Gravity1.16
  • 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.
  • CAS DataBase Reference756-79-6(CAS DataBase Reference)
  • NIST Chemistry ReferencePhosphonic acid, methyl-, dimethyl ester(756-79-6)
  • EPA Substance Registry SystemDimethyl methylphosphonate (756-79-6)
Safety Information
  • Hazard Codes T,Xi
  • Risk Statements 46-36-62
  • Safety Statements 53-26-45
  • RIDADR 2810
  • WGK Germany 2
  • RTECS SZ9120000
  • Hazard Note Irritant/Toxic
  • TSCA Yes
  • Hazardous Substances Data756-79-6(Hazardous Substances Data)
  • ToxicityLD50 in rats, mice (mg/kg): 10190, >6810 orally (Rowland)
Dimethyl methylphosphonate Usage And Synthesis
  • Chemical Propertiescolourless liquid
  • UsesNMR probe for cell volume. Flame retardant. Simulant for nerve agents.
  • General DescriptionClear colorless liquid with a pleasant odor.
  • Air & Water ReactionsHighly flammable. Water soluble. Hydrolyzes slowly upon contact with water.
  • Reactivity ProfileDimethyl 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.
  • Fire HazardDimethyl methylphosphonate is combustible.
  • Safety ProfileModerately 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
Dimethyl methylphosphonate(756-79-6)Related Product Information
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