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colorless liquid used as a nerve gasnerve gas,
any of several poison gases intended for military use, e.g., tabun, sarin, soman, and VX. Nerve gases were first developed by Germany during World War II but were not used at that time.
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. It boils at 167°C;, evolving an odorless vapor. It is rapidly absorbed through the skin; death may result within 15 min of exposure. In nonfatal concentrations it is hazardous to the eyes. Soman is more powerful than tabun, acting faster and at lower concentrations. Chemically, soman is fluoromethylpinacolyloxyphosphine oxide.



a nerve gas; a pinacolyl ester of methylphosphonofluoridate:

A colorless liquid of low volatility. Boiling point, 42°C (0.2 mm of mercury);d204, 1.04; n20D, 1.408. Poorly soluble in water; readily soluble in organic solvents. It is hydrolyzed very slowly by water and considerably more rapidly by aqueous solutions of acids, alkalies, and amines, with the formation of nontoxic products.

Soman has a very pronounced myotic action (contraction of the pupil of the eye). The lethal concentration in air is 0.’02 mg per liter for an exposure of 1 min. The action of Soman on the skin, either as drops of liquid or as a vapor, causes general poisoning. A gas mask and protective clothing provide protection against it.


Stepanov, A. “Otravliaiushchie veshchestva.” Zhurnal khimicheskogo obshchestva im. D. I. Mendeleeva, 1968, vol. 13, no. 6, p. 608.
References in periodicals archive ?
British researchers proposed using PB as a protection against soman in the late 1970s.
When the two professors--Gourville at Harvard Business School, Soman at the School of Business and Management at the Hong Kong University of Science and Technology--studied ticket sales at a Shakespeare theater festival, they found that people who bought tickets to individual plays bad a no-show rate of less than one percent.
Prosecutor Trefor Davies said Soman was like "an incredible travelling bomb" as he covered the equivalent of three-quarters the length of a football pitch every second on country roads.
Soman, 32, of Meadow Farm, Church Village, Pontypridd, admitted dangerous driving at Swansea Crown Court after embarking on the deathdefying journey through Brecon and Llandovery last September.
The hydrolysis of soman or dimebu was monitored with a fluoride-sensitive electrode (1); the loss of AChE inhibitory potency, by a modified Ellman reaction (1).
Summary: Mumbai (Maharashtra) [India], Dec 17 (ANI): 'Ironman' Milind Soman is all set to host an adventure series 'I Can You Can'.
We are pleased to inform you that our Group Customer Experience team contacted Mr Soman and the matter has been resolved.
The story mentions many eminent people with one of them being the designer's friend and muse Milind Soman, who was also present at the event.
The Bharathanatyam Arangetram dance will be performed by New Millennium School grade three student Neha Pugalendi and Indian School sixth grade student Devika Soman.
As per results, in race competition Soman of GGMS Shaheen Muslim Town Gulabahar clinched 1st, Laila of GGMS Gul Bachi Jee achieved 2nd while Naheed of GGMS Jehangeer pura and Jaweria of GGMS Palosai got 3rd positions in the competition.
Other chemicals that have neurological effects--including such nerve agents as sarin, certain organophosphate-based pesticides, soman, and others-enter the body through absorption from the airways.
Swansea Crown Court heard that self-employed carpenter Wayne Soman, 32, strapped a video camera to the petrol tank of his 900cc Kawasaki, gave a "thumbs up" sign to himself before proceeding to "use the Welsh countryside like a race track".