sodium thiosulfate

noun

Chemistry.

1. a white, crystalline, water-soluble powder, Na 2 S 2 O 3 ⋅5H 2 O, used as a bleach and in photography as a fixing agent.

Word History and Origins

Origin of sodium thiosulfate¹

First recorded in 1880–85

Example Sentences

When the royal couple wrote their names with the celebrated ink, the signatures became brown when developed and chemists fixed the paper with a solution of sodium thiosulfate so the writing would not fade.

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Doctors and nurses were instructed to filter the drug, sodium thiosulfate, before administering it to patients.

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A doctor prescribed weekly infusions of a drug, sodium thiosulfate, Ms. Benge said, thinking it might bind to the calcium so her body could flush it out.

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Titrate the iodine with N/10 sodium thiosulfate solution which is added gradually, with constant shaking, until the yellow color of the solution has almost disappeared.

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Dilute with 100 cc. of water, and allow the N/10 sodium thiosulfate to flow slowly into the flask until the yellow color of the liquid has almost disappeared.

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