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Meaning of ammonium thiosulfate

ammo'nium thiosul'fate

Pronunciation: [key]
— Chem. Chem.
  1. a white, crystalline, water-soluble solid, (NH)SO, used chiefly in the manufacture of cleaning compounds for alloys having a tin or lead base.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.