Effect of supercritical water density on the rate constant of aliphatic nitrocompounds decomposition

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• 作者：Anikeev ; V.I. ; Yermakova ; A. ; Semikolenov ; V.A. ; Goto ; M.
• 关键词：Supercritical water ; Chemical reaction ; Decomposition ; Pressure effect
• 刊名：The Journal of Supercritical Fluids
• 出版年：2005
• 期刊代码：60_08968446
• 类别：ce
• 出版时间：March, 2005
• 卷：33
• 期：3
• 页码：243-246
• 文件大小：125 K

摘要

It was shown experimentally that the rate of aliphatic nitrocompounds decomposition in supercritical water (SCW) depends on pressure/density at constant temperature. The SCW density dependence of the apparent rate constant of decomposition for each of three compounds under consideration (nitromethane, nitroethane and 1-nitropropane) was found to correlate with the density dependence of the H₃O⁺ concentration in dissociated SCW. The rate constant of RNO₂ decomposition in SCW decreased with increasing the length of hydrocarbon radical R.