連二亞硫酸鹽
| 連二亞硫酸鹽 | |
|---|---|
| |
| 識別 | |
| CAS號 | 14844-07-6 
|
| 性質 | |
| 化學式 | [S2O4]2− |
| 若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。 | |
連二亞硫酸鹽 ([S2O4]2−)是一種硫的含氧酸鹽。[1]連二亞硫酸鹽的例子有連二亞硫酸鈉和連二亞硫酸鋅。[2]
反應
[編輯]連二亞硫酸鹽是一種還原劑，會還原成亞硫酸鹽：[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
它是連二亞硫酸 (H2S2O4)的鹽，不過這種酸沒有實際用途。
參考資料
[編輯]- ^ 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.
