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Meaning of sodium thiosulfate

so'dium thiosul'fate

Pronunciation: [key]
— Chem. Chem.
  1. a white, crystalline, water-soluble powder, NaSO&multiplydot;5HO, used as a bleach and in photography as a fixing agent. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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