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thiosulphate |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Thiosulphate \Thi`o*sul"phate\, n. (Chem.) A salt of thiosulphuric acid; -- formerly called {hyposulphite}. Note: The sodium salt called in photography by the name sodium hyposulphite, being used as a solvent for the excess of unchanged silver chloride, bromide, and iodide on the sensitive plate.
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