sodium thiosulfate

noun

An inorganic compound that is typically available as the pentahydrate, Na₂S₂O₃·5H₂O. It is used in iodometry, photographic processing, gold extraction, etc.

Meanings

nounsodium thiosulfate (uncountable)

alternative sodium thiosulphate · alternative sodiumthiosulfate · alternative sodiumthiosulphate

  1. uncountableAn inorganic compound that is typically available as the pentahydrate, Na₂S₂O₃·5H₂O. It is used in iodometry, photographic processing, gold extraction, etc.

    Synonyms: hyposulfite of soda, hypo

Synonyms & antonyms

nounAn inorganic compound that is typically available as the pentahydrate, Na₂S₂O₃·5H₂O. It is used in iodometry, photographic processing, gold extraction, etc.

More synonyms by meaning

nouna compound used as a fixing agent in photographic developing

Broader
fixing agentfixer
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Chinese Mandarin 硫代硫酸鈉 /硫代硫酸钠
  • 硫代硫酸鈉 /硫代硫酸钠 (liúdài liúsuānnà)inorganic compound used in iodometry, photographic processing, gold extraction, etc.
French thiosulfate de sodium
  • thiosulfate de sodiuminorganic compound used in iodometry, photographic processing, gold extraction, etc.
German Natriumthiosulfat, Fixiersalz
  • Natriumthiosulfatinorganic compound used in iodometry, photographic processing, gold extraction, etc.
  • Fixiersalzinorganic compound used in iodometry, photographic processing, gold extraction, etc.
Hungarian nátrium-tioszulfát, fixírsó
  • nátrium-tioszulfátinorganic compound used in iodometry, photographic processing, gold extraction, etc.
  • fixírsóinorganic compound used in iodometry, photographic processing, gold extraction, etc.
  • széksóinorganic compound used in iodometry, photographic processing, gold extraction, etc.
Italian tiosolfato di sodio
  • tiosolfato di sodioinorganic compound used in iodometry, photographic processing, gold extraction, etc.
Polish antychlor, tiosiarczan sodu
  • antychlorinorganic compound used in iodometry, photographic processing, gold extraction, etc.
  • tiosiarczan soduinorganic compound used in iodometry, photographic processing, gold extraction, etc.
Spanish tiosulfato de sodio
  • tiosulfato de sodioinorganic compound used in iodometry, photographic processing, gold extraction, etc.
Cite this entry
APA

sodium thiosulfate. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sodium%20thiosulfate

MLA

“sodium thiosulfate.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sodium%20thiosulfate. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “sodium thiosulfate,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sodium%20thiosulfate.

Source: sodium thiosulfate on Wiktionary, CC BY-SA 4.0.