sodium hyposulphite
1sodium hyposulphite — /ˌsoʊdiəm haɪpoʊˈsʌlfaɪt/ (say .sohdeeuhm huypoh sulfuyt) noun → sodium thiosulphate. Also, sodium hyposulfite …
2hyposulphite — Thiosulphate Thi o*sul phate, n. (Chem.) A salt of thiosulphuric acid; formerly called {hyposulphite}. [1913 Webster] Note: The sodium salt called in photography by the name sodium hyposulphite, being used as a solvent for the excess of unchanged …
3sodium thiosulphate — /soʊdiəm θaɪoʊˈsʌlfeɪt/ (say sohdeeuhm thuyoh sulfayt) noun a water soluble crystalline salt, Na2S2O3.5H2O, used as a bleach and a photographic fixing agent. Also, sodium thiosulfate, sodium hyposulphite, hyposulphite, hypo …
4Sodium thiosulfate — Sodium thiosulfate …
5hyposulphite — /haɪpoʊˈsʌlfaɪt/ (say huypoh sulfuyt) noun Chemistry Obsolete 1. a salt of hyposulphurous acid. 2. → sodium thiosulphate. Also, hyposulfite …
6Thiosulphate — Thi o*sul phate, n. (Chem.) A salt of thiosulphuric acid; formerly called {hyposulphite}. [1913 Webster] Note: The sodium salt called in photography by the name sodium hyposulphite, being used as a solvent for the excess of unchanged silver… …
7photography, history of — Introduction method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… …
8Hypo — Hy po, n. [Abbrev. from hyposulphite.] (Photog.) Sodium hyposulphite, or thiosulphate, a solution of which is used as a bath to wash out the unchanged silver salts in a picture. [Colloq.] [1913 Webster] …
9hydrosulphite — /haɪdroʊˈsʌlfaɪt/ (say huydroh sulfuyt) noun a salt containing S2O42 ions, hyposulphite, dithionite; short for sodium hyposulphite, which is used as a bleach. Also, hydrosulfite …
10hydrosulphite — hydrosulˈphite noun A hyposulphite (esp sodium hyposulphite) • • • Main Entry: ↑hydro …
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