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sodium thiosulfate |
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sodium thiosulfate, Na2S2O3, colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3·5H2O, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or "hypo." Sodium thiosulfate is readily soluble in water and is a mild reducing agent. Because it dissolves silver salts, its major use is in photography for developing film. It is also used in chrome-tanning leather and in chemical manufacture. Sodium thiosulfate is produced chiefly from liquid waste products of sodium sulfide or sulfur dye manufacture. It is also produced from sodium carbonate, sulfur dioxide, and sulfur by a process that involves several steps. sodium thiosulfate [′sōd·ē·əm ‚thī·ə′səl‚fāt] (inorganic chemistry) Na2S2O3·5H2O White, translucent crystals or powder with a melting point of 48°C; soluble in water and oil of turpentine; used as a fixing agent in photography, for extracting silver from ore, in medicine, and as a sequestrant in food. Also known as sodium hyposulfite; sodium subsulfite. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Although the issue is still debated in the medical community, Eckerman firmly believes that sodium thiosulfate should have been widely used as an antidote for the exposed victims: Eckerman concludes that sodium thiosulfate must have been necessary, not because of patient presentation, but because Union Carbide withdrew the initial recommendation for use of the cyanide antidote. 25% sodium hypochlorite) was used for disinfection, and sodium thiosulfate (0. Halogenated isobutylene rubber composition containing sodium thiosulfate pentahydrate U. |
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