甲烷二磺酸
甲烷二磺酸 | |
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IUPAC名 methanedisulfonic acid | |
识别 | |
CAS号 | 503-40-2 |
PubChem | 10427 |
ChemSpider | 9998 |
SMILES |
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性质 | |
化学式 | CH4O6S2 |
摩尔质量 | 176.17 g·mol−1 |
外观 | 无色固体 |
熔点 | 138—140 °C(411—413 K)[1] |
沸点 | 209—210 °C(482—483 K)(分解)[2] |
溶解性(水) | 易溶 |
危险性 | |
GHS危险性符号 | |
GHS提示词 | 危险 |
H-术语 | H314, H318, H413 |
P-术语 | P261, P264, P271, P280, P302+352, P304+340, P305+351+338, P312, P321, P332+313, P337+313, P362, P403+233, P405 |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
甲烷二磺酸是一种有机硫化合物,化学式为CH2(SO3H)2,它可由甲烷磺酸和发烟硫酸反应得到。它的酸性(pKa)与硫酸相当。[3]它和金属形成的盐是已知的。[4]
参见
参考文献
- ^ Goldwhite, H.; Gibson, M.S.; Harris, C. Free radical addition reactions—IV. Tetrahedron. January 1965, 21 (10): 2743–2747. doi:10.1016/S0040-4020(01)98360-7.
- ^ Swan, G. A.; Satchell, D. P. N.; Sykes, K. W.; Michelson, A. M.; Boyd, A. N.; Southern, P. F.; Waters, William A.; Cummings, W. A. W.; Harvey, W. E.; Moore, C. G.; Porter, M.; Menzies, I. A.; Owen, L. W.; Mulley, B. A.; de Ruyter van Steveninck, A. W.; Taylor, E. P. Notes. Journal of the Chemical Society (Resumed). 1958: 2051–2068. doi:10.1039/JR9580002051. See note at pages 2058-2060; Cummings, W. A. W. "Some New Sulphur-containing Diacids".
- ^ Kosswig, Kurt, Sulfonic Acids, Aliphatic, Ullmann's Encyclopedia of Industrial Chemistry, Weinheim: Wiley-VCH, 2005, doi:10.1002/14356007.a25_503
- ^ Sarut Jianrattanasawat, Gellert Mezei. 3,5-Dimethylpyrazole promoted sulfonation of acetic anhydride by H2SO4 to sulfoacetic acid and methanedisulfonic acid, and crystal structures of the complexes with Co2+, Zn2+, Ba2+, Pb2+ and Cs+. Inorganica Chimica Acta. 2012-04, 384: 318–323 [2020-04-12]. doi:10.1016/j.ica.2011.12.022. (原始内容存档于2020-02-12) (英语).