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sodium thiosulphate

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
sodium thiosulphate
n
(Chemistry / Elements & Compounds) a white soluble substance used, in the pentahydrate form, in photography as a fixer to dissolve unchanged silver halides and also to remove excess chlorine from chlorinated water. Formula: Na2S2O3 Also called (not in technical usage) sodium hyposulphite hypo
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.sodium thiosulphate - a compound used as a fixing agent in photographic developingsodium thiosulphate - a compound used as a fixing agent in photographic developing
fixing agent, fixer - a chemical compound that sets or fixes something (as a dye or a photographic image)


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Aniline is vacuum distilled over zinc; the middle fraction is collected and stored in a refrigerator, whereas potassium iodate, HI and sodium thiosulphate are used as received.
She then went into a chemistry lab where Lynda Williams and Lisa Robson demonstrated the chemical reaction caused by mixing hydrochloric acid with sodium thiosulphate.
Estimated mineral recovery, using environmentally-friendly calcium or sodium thiosulphate leaching, is reportedly at least 60 percent, although the Company is confident that this figure can be improved significantly with additional metallurgical research.
 
 
 
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