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  2. Sodium thiosulfate - Wikipedia

    en.wikipedia.org/wiki/Sodium_thiosulfate

    Sodium thiosulfate (sodium thiosulphate) is an inorganic compound with the formula Na 2 S 2 O 3 ·(H 2 O) x. Typically it is available as the white or colorless pentahydrate (x = 5), which is a white solid that dissolves well in water. The compound is a reducing agent and a ligand, and these properties underpin its applications. [2]

  3. Thiosulfate - Wikipedia

    en.wikipedia.org/wiki/Thiosulfate

    Thiosulfate is an acceptable common name and used almost always. The functional replacement IUPAC name is sulfurothioate; the systematic additive IUPAC name is trioxidosulfidosulfate(2−) or trioxido-1κ 3 O-disulfate(S—S)(2−). [1] Thiosulfate also refers to the esters of thiosulfuric acid, e.g. O,S-dimethyl thiosulfate CH 3 −O−S(=O) 2 ...

  4. Sodium thiosulfate (medical use) - Wikipedia

    en.wikipedia.org/wiki/Sodium_thiosulfate...

    Sodium thiosulfate is a classical antidote to cyanide poisoning, [10] For this purpose it is used after the medication sodium nitrite and typically only recommended for severe cases. [4] [6] It is given by injection into a vein. [4] In this use, sodium nitrite creates methemoglobinemia which removes cyanide from mitochondria. [6]

  5. Photographic fixer - Wikipedia

    en.wikipedia.org/wiki/Photographic_fixer

    Fixation is commonly achieved by treating the film or paper with a solution of thiosulfate salt. Popular salts are sodium thiosulfate—commonly called hypo—and ammonium thiosulfate—commonly used in modern rapid fixer formulae. [1] Fixation by thiosulfate involves these chemical reactions (X = halide, typically Br −): [2]

  6. Transition metal thiosulfate complex - Wikipedia

    en.wikipedia.org/wiki/Transition_metal...

    Sodium thiosulfate and ammonium thiosulfate have been proposed as alternative lixiviants to cyanide for extraction of gold from ores [8] and printed circuit boards. [9] The complex [Au(S 2 O 3) 2] 3-is assumed to be the principal product in such extractions. Presently cyanide salts are used on a large scale for that purpose with obvious risks. [8]

  7. Iodine clock reaction - Wikipedia

    en.wikipedia.org/wiki/Iodine_clock_reaction

    This clock reaction uses sodium, potassium or ammonium persulfate to oxidize iodide ions to iodine. Sodium thiosulfate is used to reduce iodine back to iodide before the iodine can complex with the starch to form the characteristic blue-black color. Iodine is generated: 2 I − + S 2 O 2− 8 → I 2 + 2 SO 2− 4. And is then removed:

  8. Category:Thiosulfates - Wikipedia

    en.wikipedia.org/wiki/Category:Thiosulfates

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  9. Tetrathionate - Wikipedia

    en.wikipedia.org/wiki/Tetrathionate

    Tetrathionate is a product of the oxidation of thiosulfate, S 2 O 2− 3, by iodine, I 2: 2 S 2 O 2− 3 + I 2 → S 4 O 2− 6 + 2I −. The use of bromine instead of iodine is dubious as excess bromine will oxidize the thiosulfate to sulfate.