carbon disulfide

carbon disulfide
a clear, colorless or faintly yellow, poisonous, flammable liquid, CS2, used chiefly in the manufacture of cellophane, viscose rayon, and pesticides and as a solvent for fats, resins, and rubber. Also called carbon bisulfide.

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also called  Carbon Bisulfide 

      a colourless, toxic, highly volatile and flammable liquid chemical compound, large amounts of which are used in the manufacture of viscose rayon, cellophane, and carbon tetrachloride; smaller quantities are employed in solvent extraction processes or converted into other chemical products, particularly accelerators of the vulcanization of rubber or agents used in flotation processes for concentrating ores.

      For many years carbon disulfide was manufactured by the reaction of charcoal with sulfur vapour at temperatures of 750°–1,000° C (1,400°–1,800° F), but, by the mid-20th century, that process had been superseded, especially in the United States, by one based on the reaction of natural gas (principally methane) with sulfur.

      The use of carbon disulfide for extraction of fats, oils, and waxes has been largely discontinued in favour of other solvents that are less toxic and flammable. The use of carbon disulfide in making rayon and cellophane depends upon its reaction with cellulose and caustic soda to form colloidal solutions of cellulose xanthate, which can be extruded into a dilute solution of sulfuric acid, which coagulates the cellulose films or fibres and sets free the carbon disulfide.

      Carbon disulfide is denser than water and only slightly soluble in it. Its boiling point is 46.3° C (115.3° F) and its freezing point -110.8° C (-169.2° F); its vapour, which is heavier than air, is ignited with extraordinary ease.

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Universalium. 2010.

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  • carbon disulfide — n a colorless flammable poisonous liquid CS2 used as a solvent for rubber and as an insect fumigant called also carbon bisulfide * * * a colorless, flammable, poisonous liquid, CS2, used as a solvent, as a fruit preservative, and for numerous… …   Medical dictionary

  • carbon disulfide — n. a heavy, volatile, colorless liquid, CS2, highly flammable and poisonous, used as a solvent, insecticide, etc …   English World dictionary

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  • Carbon disulfide (data page) — This page provides supplementary chemical data on carbon disulfide. Material Safety Data Sheet The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this… …   Wikipedia

  • carbon disulfide poisoning — a condition occurring in workers who excessively inhale fumes of carbon disulfide; characteristics include weakness, sleeplessness, and visual impairment, and sometimes gastric ulcers, encephalopathy, and paralysis …   Medical dictionary

  • carbon disulfide — noun A binary compound of carbon and sulfur, CS, a colourless liquid with a not unpleasant smell; used as a specialist solvent, and in the manufacture of organosulfur compounds. Syn: carbon bisulfide …   Wiktionary

  • carbon disulfide — noun Date: 1869 a colorless flammable poisonous liquid CS2 used as a solvent for rubber and as an insect fumigant called also carbon bisulfide …   New Collegiate Dictionary

  • carbon disulfide — noun a toxic colorless flammable liquid (CS2); used in the manufacture of rayon and cellophane and carbon tetrachloride and as a solvent for rubber • Hypernyms: ↑compound, ↑chemical compound …   Useful english dictionary

  • carbon disulfide — car′bon disul′fide n. chem. a clear flammable liquid, CS2, used in making cellophane, rayon, and pesticides and as a solvent • Etymology: 1865–70 …   From formal English to slang

  • Carbon diselenide — Carbon diselenide …   Wikipedia

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