Tetrathionate

Tetrathionate

The tetrathionate anion, S4O62−, is a sulfur oxoanion derived from the compound tetrathionic acid, H2S4O6. Two of the sulfur atoms present in the ion are in oxidation state 0 and two are in oxidation state +5. Alternatively, the compound can be viewed as the adduct resulting from the binding of the Lewis base S22− to SO3. Tetrathionate is one of the polythionates, a family of anions with the formula [Sn(SO3)2] 2−.

Tetrathionate is a product of the oxidation of thiosulfate, S2O32−, by iodine, I2::2S2O32− + I2 → S4O62− + 2I

tructure

Tetrathionate's structure can be visualized as following three edges of a cube, as in the diagram below. The structure shown is the configuration of S4O62− in BaS4O6·2H2O and Na2S4O6·2H2O. Dihedral S-S-S angles approaching 90° are common in polysulfides.

Compounds

Compounds containing the tetrathionate anion include sodium tetrathionate, Na2S4O6, potassium tetrathionate, K2S4O6, and barium dithionate dihydrate, BaS4O6·2H2O.

References

*Greenwood&Earnshaw


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Look at other dictionaries:

  • Tetrathionate — Tet ra*thi on*ate, n. (Chem.) A salt of tetrathionic acid. [1913 Webster] …   The Collaborative International Dictionary of English

  • Tétrathionate — Structure de l ion tétrathionate L ion tétrathionate anion, S4O62−, est un oxoanion du soufre dérivé de l acide tétrathionique, H2S4O6. Deux des atomes de soufre présents dans l ion sont au nombre d oxydation 0 et deux au nombre +5 …   Wikipédia en Français

  • tetrathionate broth — a liquid medium containing peptone, bile salts, calcium carbonate, and sodium thiosulfate, which is converted to tetrathionate by the addition of iodine immediately before use, used as a selective medium for the isolation of Salmonella serovars… …   Medical dictionary

  • Tetrathionate — Polythionsäuren zählen zu den Sauerstoffsäuren des Schwefels mit der allgemeinen Summenformel H2S2+nO6 bzw. HO3S–Sn–SO3H (n = 1, 2, 3, … 11). Polythionsäuren sind in wässrigen Lösungen relativ beständig. Die Beständigkeit nimmt mit zunehmendem… …   Deutsch Wikipedia

  • tetrathionate — noun The oxyanion SO derived from tetrathionic acid; any salt containing this ion …   Wiktionary

  • tetrathionate — tet·ra·thi·o·nate …   English syllables

  • tetrathionate — ˌ ̷ ̷ ̷ ̷ˈthīəˌnāt noun Etymology: International Scientific Vocabulary tetrathion (in tetrathionic acid) + ate : a salt of tetrathionic acid …   Useful english dictionary

  • Muller-Kauffmann (bouillon de base au tetrathionate) — Muller Kauffmann (bouillon de base au tétrathionate) Bouillon d enrichissement en Salmonella Composition tryptone: 7,0 g peptone de soja: 2,3 g bile de bœuf: 4,8 g vert brillant: 9,5 mg chlorure de sodium: 2,3 g thiosulfate: 24,0 g tétrathionate …   Wikipédia en Français

  • Muller-kauffmann (bouillon de base au tétrathionate) — Bouillon d enrichissement en Salmonella Composition tryptone: 7,0 g peptone de soja: 2,3 g bile de bœuf: 4,8 g vert brillant: 9,5 mg chlorure de sodium: 2,3 g thiosulfate: 24,0 g tétrathionate: 6,7 g sodium: 11,8 g potassium: 1,15 g iodures: 7,4… …   Wikipédia en Français

  • Muller-Kauffmann (bouillon de base au tétrathionate) — Bouillon d enrichissement en Salmonella Composition tryptone: 7,0 g peptone de soja: 2,3 g bile de bœuf: 4,8 g vert brillant: 9,5 mg chlorure de sodium: 2,3 g thiosulfate: 24,0 g tétrathionate: 6,7 g sodium: 11,8 g potassium: 1,15 g iodures: 7,4… …   Wikipédia en Français

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