期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 115, 期 24, 页码 7823-7829出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp109551z
关键词
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资金
- National Natural Science Foundation of China [50673005, 50973003, 51074150, 50404004, 21001009, 20973034, 20975029, 20876174, 10979076, 11079041, 21074104]
- China Postdoctoral Science Foundation [200801007, 20070410002]
- MOST [2010AA03A406]
- Advanced Technology Institute, Peking University
- Foundation of State Key Laboratory of Coal Conversion [09-610]
We report the discovery of a potentially useful superconcentrated HCl at ambient temperature and pressure by using a simple surfactant-based reversed micelle system. Surprisingly, the molar ratios of H+ to H2O (denoted as n(H+)/n(H2O)) in superconcentrated HCl can be larger than 5, while the maximum achievable n(H+)/n(H2O) value for conventional saturated HCl aqueous solution (37 wt %) is only about 0.28. Furthermore, both NMR and FT-IR results indicate that a significant amount of HCl remains in the molecular form rather than being ionized into H+ and Cl-. The superconcentrated HCl may promote some organic reactions that are not feasible by using conventional 37 wt % HCl solution. For example, addition reaction between C=C and HCl occurs in superconcentrated HCl solution without using catalysts.
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