sodium thiosulphate

n (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 or hypo

Thesaurus

Noun

sodium thiosulphate - a compound used as a fixing agent in photographic developinghypo, sodium thiosulfatefixing agent, fixer - a chemical compound that sets or fixes something (as a dye or a photographic image)

EncyclopediaSeesodium thiosulfate

sodium thiosulphate

A drug used to treat cyanide poisoning in conjunction with sodium nitrite. Sodium nitrite produces methaemoglobinaemia and the cyanide ions convert methaemoglobin to cyanmethaemoglobin. As this slowly dissociates, the thiosulphate converts it to non-toxic thiocyanate which is excreted in the urine. The drug is on the WHO official list.

AcronymsSeeNa2S2O3

sodium thiosulphate

noun

Synonyms for sodium thiosulphate

noun a compound used as a fixing agent in photographic developing

Synonyms

hypo
sodium thiosulfate

Related Words

fixing agent
fixer

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