双乙酸钠
双乙酸钠是一种化学式为NaH(C
2H
3O
2)
2的化合物,通常用做调味剂以及抗微生物剂。
双乙酸钠 | |
---|---|
别名 | 双醋酸氢钠;SDA;二醋酸一钠;双醋酸钠 |
识别 | |
CAS号 | 126-96-5 |
ChemSpider | 29100 |
SMILES |
|
性质 | |
化学式 | C4H7NaO4 |
摩尔质量 | 142.09 g·mol−1 |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
製備及結構
双乙酸钠可以將乙酸钠進行半中和,再將溶液蒸發而得。可以視為是一種在濃縮乙酸溶液中增強酸性的同型缔合的結果:
- 2 CH3CO2H + NaOH → Na+[(CH3CO2)2H]- + H2O
參考資料
- Barrow, Michael J.; Currie, Murdoch; Muir, Kenneth W.; Speakman, J. Clare; White, David N, J. "Crystal structures of some acid salts of monobasic acids. XVII. Structure of sodium hydrogen diacetate, redetermined by neutron diffraction" Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry 1975, pp. 15-18. doi:10.1039/P29750000015
- Peter J. Taormina "Implications of Salt and Sodium Reduction on Microbial Food Safety" in Critical Reviews in Food Science and Nutrition, 2010, vol. 50, 209-227. doi:10.1080/10408391003626207
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.