连二亚硫酸盐
连二亚硫酸盐 ([S2O4]2−)是一种硫的含氧酸盐。[1]连二亚硫酸盐的例子有连二亚硫酸钠和连二亚硫酸锌。[2]
| 连二亚硫酸盐 | |
|---|---|
| |
| 识别 | |
| CAS号 | 14844-07-6 
|
| 性质 | |
| 化学式 | [S2O4]2− |
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | |
反应
连二亚硫酸盐是一种还原剂，会还原成亚硫酸盐：[3]
- S
2O2−
4 + 2 H2O → 2 HSO−
3 + 2 e− + 2 H+
- 2 S
2O2−
4 + H2O → S
2O2−
3 + 2 HSO−
3
- 3 S2O42- + 6 OH- → 5 SO32- + S2- + 3 H2O
它是连二亚硫酸 (H2S2O4)的盐，不过这种酸没有实际用途。
参考资料
- ^ International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): RSC–IUPAC. ISBN 0-85404-438-8. p. 130. Electronic version.
- ^ 2.0 2.1 2.2 José Jiménez Barberá; Adolf Metzger; Manfred Wolf. Sulfites, Thiosulfates, and Dithionites. Ullmann's Encyclopedia of Industrial Chemistry. Wiley Online Library. 15 June 2000. ISBN 978-3527306732. doi:10.1002/14356007.a25_477.
- ^ Mayhew, S. G. The Redox Potential of Dithionite and SO2− from Equilibrium Reactions with Flavodoxins, Methyl Viologen and Hydrogen plus Hydrogenase. European Journal of Biochemistry. 2008, 85: 535–547. doi:10.1111/j.1432-1033.1978.tb12269.x
.
- Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4.
