Soman

Synonyms

GD; 1,2,2-Trimethylpropyl methylphosphonofluoridate; 1,2,2-Trimethylpropylester kyseliny methylfluorfosfonove [Czech]; 1-Methyl-2,2-dimethylpropylmethylphosphonofluoridate; 2-Butanol, 3,3-dimethyl-, methylphosphonofluoridate; 3,3-Dimethyl-2-butyl methylphosphonofluoridate; 3,3-Dimethyl-n-but-2-yl methylphosphonofluoridate; EA 1210; Methyl pinacolyl phosphonofluoridate; Methyl pinacolyloxy phosphorylfluoride; Methylfluorphosphorsaeurepinakolylester [German]; Methylphosphonofluoridic acid 1,2,2-trimethylpropyl ester; Methylphosphonofluoridic acid, 3,3-dimethyl-2-butyl ester; Nerve agent; PMFP; Phosphine oxide, fluoromethyl(1,2,2-trimethylpropoxy)-; Phosphonofluoridic acid, methyl-, 1,2,2-trimethylpropyl ester; Pinacoloxymethylphosphoryl fluoride; Pinacolyl methylfluorophosphonate; Pinacolyl methylphosphonofluoridate; Pinacolyl methylphosphonofluoride; Pinacolyloxy methylphosphoryl fluoride; Pynacolyl methylfluorophosphonate; T.2107; Zoman; [ChemIDplus] Lethal Nerve Agent (GD); [U.S. Army ECBC MSDS] UN2810

Category

Chemical Weapons

Description

Pure: Colorless liquid with a fruity odor; Impure: Amber or dark brown with an odor like oil of camphor; [U.S. Army ECBC MSDS]

Sources/Uses

Chemical warfare

Comments

Soman a colorless liquid with a fruity or oil of camphor odor and a vapor pressure of 0.4 mm Hg at 77 degrees F. It is relatively persistent in the soil. [Jane, p. 85-6] The LD50 on skin is 50 mg. The LCt50 is 70 mg-min/m3. Soman undergoes 'aging' in about two minutes. Treatment of casualties is more difficult than for other nerve agents that take longer to age. After two minutes, the usefulness of oximes is reduced. [USAMRICD, p. 107, 110] "As little as one drop of VX on the skin can be fatal and 1 to 10 mL of GA, GB, or GD can be fatal." [ATSDR Medical Management] A potent cholinesterase inhibitor; [Merck Index] See the disease, "Organophosphate & carbamates, acute poisoning."

Reference Link #1

Biomedical References

Yes

0.41 mm Hg

LCLo (human) = 70 mg/m3

Explanatory Notes

VP from HSDB;

Other Poison

Organophosphate

Diseases

Occupational diseases associated with exposure to this agent:

• Organophosphates & carbamates, acute poisoning