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(zärēn`), volatile 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 147°C; but evaporates quickly at room temperature; its vapor is colorless and odorless. Chemically, sarin is fluoroisopropoxymethylphosphine oxide; it is more toxic than tabuntabun
, liquid chemical compound used as a nerve gas. It boils at 240°C; with some decomposition. The liquid is colorless to brownish; its vapors have a fruity odor similar to that of bitter almonds. The liquid is absorbed through the skin, but the vapor is not.
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 or somansoman,
colorless liquid used as a nerve gas. 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.
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. Sarin acts by interfering with cholinesterase, a chemical that transmits impulses from one nerve cell to the next. A gas mask provides adequate protection against the vapor, but the liquid form can also be absorbed through the skin. Sarin was developed by the Nazis during World War II. In 1994 and 1995 it was used by Aum Shinrikyo, a Japanese religious sect, in terrorist attacks that killing a total of 21 people and affected more than 5,000.



an isopropyl ester of the acid fluoride of methylphosphonic acid:

a toxic substance with neuroparalytic action; a colorless, mobile liquid. Boiling point, 151.5°C, d4/420, 1.094; index of refraction nD20, 1.383; volatility (maximum concentration), 11.3 mg per liter (20°C).

Sarin is miscible with water in any proportion and dissolves readily in organic solvents. It hydrolyzes very slowly with water, much faster in the presence of inorganic acids, and especially rapidly in aqueous alkalies, ammonia, and amines; it forms nontoxic compounds in all cases. These reactions can be used for degassing of sarin.

Sarin has strongly pronounced myotic action (contraction of the pupil); the lethal concentration is about 0.2 mg per liter for an exposure of one min. A gas mask serves as reliable protection against sarin.


Sartori, M. “Novoe v khimii boevykh otravliaiushchikh veshchestv.” Uspekhi khimii, 1954, vol. 23, issue 1.
Stepanov, A. “Otravliaiushchie veshchestva.” Zhurnal Vsesoiuznogo khimicheskogo obshchestva im. D. I. Mendeleeva, 1968, vol. 13, no. 6.


References in periodicals archive ?
That afternoon, Sarin, along with his friend and colleague Kong Lonthon, got into a jeep with their recruiter.
Joint Investigative Mechanism mandate in Syria and withdrew in protest over the United States refusing to fully investigate allegations of chemical weapons use by "rebels" (jihadis) allied with the American effort to oust President Assad (including the use of Sarin by anti-Assad rebels).
Those trying to help those dying from exposure to the nerve agent, themselves also fell victim, as sarin is known to be the most volatile of all the nerve agents.
Israeli officials on Wednesday said that the probability of Israeli civilians being affected by the Sarin gas attack in Damascus was virtually non-existent.
The sarin film from a hospital in Afrin, an hour from Aleppo, shows men and women twitching as they writhe in agony.
com , a US online magazine, reported in its Danger Room military blog that government engineers in centralSyriawere thought to have started mixing chemicals last week to make sarin gas.
The group's crimes include the two sarin attacks and the killing in November 1989 of 33-year-old Tsutsumi Sakamoto, an anti-AUM lawyer, and his wife and son.
Sarin has an MS in Engineering and an MBA from the University of California at Berkeley.
While playing down the likely impact on jobs in the UK, Sarin admitted: "I'm not saying there is no possibility of people being affected here but we have a lot of contractors and they will go first and we will make sure that our employees are taken care of.
Mr Sarin leaves after five years in charge, and will hand over the reins to deputy chief executive Vittorio Colao.
7 per cent rise in operating profits as it said chief executive Arun Sarin would step down at the end of July.
Arun Sarin will step down at the end of July to hand over to deputy chief executive Vittorio Colao.