Definition of sodium thiosulphate in English:

sodium thiosulphate

Syllabification: so·di·um thi·o·sul·phate
Pronunciation: /ˈsōdēəm ˌTHīōˈsəlfāt


  • A white soluble compound used in photography as a fixer to dissolve unchanged silver halides. Also called hypo1.
    • Chemical formula: Na2S2O3
    More example sentences
    • Excess silver is removed by sodium thiosulfate.
    • One fixative used commonly is sodium thiosulfate.
    • The process involves adding a 10% solution of sodium thiosulfate to the second developer.

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