Featured Microscopist: Loes Modderman

Sodium Thiosulfate

Sodium Thiosulfate

Also termed sodium hyposulfite or hypo, this inorganic salt enjoys a central role in photography because of its usefulness in dissolving silver salts during development of film emulsions. Sodium thiosulfate is also heavily employed in the tanning industry and as a chemical intermediate or reagent for the synthesis of other, more complex, chemicals.


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