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sodium thiosulphate Line breaks: so¦dium thio|sul¦phate
(also sodium thiosulfate)

Definition of sodium thiosulphate in English:


[mass noun]
A white soluble compound used in photography as a fixer to dissolve unchanged silver halides. Also called hypo1.
  • Chemical formula: Na2S2O3
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.
Definition of sodium thiosulphate in:
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