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|Section2= |Section7= |Section8= }} Perchloromethyl mercaptan, CCl3SCl, is mainly used as an intermediate for the synthesis of dyes and fungicides (captan, folpet). It is an oily, pale yellow liquid, which is insoluble in water, with a foul-smelling, unbearable, acrid odor. When it is heated or in a fire, it will emit toxic and corrosive gases. It is also very toxic by inhalation or skin absorption.〔Committee on Acute Exposure Guideline Levels, Committee on Toxicology, National Research Council, (2011), Acute Exposure Guideline Levels for Selected Airborne Chemicals.〕 ==History== Perchloromethyl mercaptan was discovered by the German chemist B. Rathke around 1870. He is credited with the assignment of the correct structure of this compound, a method for its preparation which is still used commercially, and a number of studies dealing with its chemistry. Since Rathke, a number of other chemists have studied this remarkable compound. Rathke’s influence is still felt in the later work. Perchloromethyl mercaptan received little industrial attention until recently, when A. R. Kittleson discovered the tetrahydrophthalimide derivative. This derivative, commercially known as Captan, possesses fungicidal properties and is at present used in agriculture. Tricloromethanesulfenyl chloride itself is manufactured by several companies in the United States and Europe. It was used as a chemical warfare agent by the French in the 1915 battle of Champagne. Shortly thereafter, wartime use was abandoned due to the clear warning properties, the decomposition in the presence of iron and steel, and the easy removal of the vapor by charcoal.〔Sosnovxky, G., (1968), The Chemistry of Trichloromethansulfenyl chloride, Institute of Organic Chemistry, Chicago.〕 Perchloromethyl mercaptan is the original name that was given to this chemical compound. The most common name is trichloromethanesulfenyl chloride, because the compound bears no similarity to mercaptans in either its chemical or its physical properties. For that reason trichloromethanesulfenyl is a more suitable name.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Perchloromethyl mercaptan」の詳細全文を読む スポンサード リンク
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