|CA Index Name||Phosphonic acid, methyl-, dimethyl ester|
|CAS Registry Number||756-79-6||RTECS Number||SZ9120000|
|UN Transport Code||
|CWC Schedule 2|
|Synonyms:|| Dimethoxymethyl phosphine oxide
Fran TF 2000
Methanephosphonic acid dimethyl ester
Methylphosphonic acid dimethyl ester
CHEMICAL AND PHYSICAL PROPERTIES
|Liquid at STP|
|-50° (pour point)|
|Vapor pressure||160 Pa at 25°C|
|Flammable: Flash Point 68°|
|NFPA Hazard Ratings|
No specific references to material in 2000 Emergency Response Guidebook (ERG2000)
Prolonged expression to high dose may be carcinogenic and teratogenic.
DMMP is widely used as a flame retardant and this is its primary commercial use. It can also be used as a catalyst and as a reagent in organic synthesis because it can be used to generate a highly reactive and very useful ylide reagent.
It is used in the manufacture of the nerve gas sarin using the US "di-di" process, but in a manner distinct from ylide chemistry. It can also be used as a simulant for Sarin training exercises and in the calibration of detectors.
In Oct. 4 1992 a cargo plane belonging to the Israeli airline El Al crashed in the Amsterdam suburb of Bijlmer, killing 43 people. People living in the area and rescue workers suffered health problems, including autoimmune disease, for years afterward. The cargo included a number of chemicals including 50 gallons of DMMP and two others used in Sarin synthesis. The quantities involved are too small for the preparation of a militarily useful quantity of Sarin, but would be consistent with making small quantities for testing detection methods and protective clothing.
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