乙酰丙酮-BrO₃^--Mn²⁺-H₂SO₄的非线性化学反应新特征

乙酰丙酮-BrO 3 - -Mn 2+ -H 2 SO 4 的非线性化学反应新特征 The New Characteristics and Kinetics of Diacetone Malic Acid BrO - 3 Mn 2+ H 2SO 4 Nonlinear Chemical Reaction 安从俊 AN Cong jun 1 first-author 甘南琴 GAN Nan qin 1 刘义 CAI Ru xiu 1 蔡汝秀 1 武汉大学化学与环境科学学院,武汉,430072 武汉大学化学与环境科学学院,武汉,430072 College of Chemistry and Environment Science,Wuhan University College of Chemistry and Environment Science,Wuhan University 首次报道了乙酰丙酮 Ｂｒ Ｏ－３  Ｍｎ２＋  Ｈ２ Ｓ Ｏ４ 体系化学振荡反应的最佳反应条件及浓度范围，研究了温度对振荡反应的影响，获得振荡反应周期、振荡寿命所对应的表观活化参数分别为 Ｅｐ ＝ １００．６８ ｋ Ｊ·ｍ ｏｌ－ １、 Ｅ Ｌ ＝４８．０５ ｋ Ｊ·ｍ ｏｌ－ １ ，首次报道并较为详细地研究了这一体系的新特征，对振荡反应中间物及产物进行了分析，并对此振荡反应机理进行了较为深入的探讨 A new chemical oscillating reaction system:Diacetone BrO - 3 Mn 2+ H 2SO 4 has been described.The best reaction condition and the reactant’s concentrations have been reported. The effect of the reaction temperature on the oscillation has been studied and the average activation energies of the reaction during the oscillation period Ep and the oscillatory life E L are obtained, E p=100.68 kJ·mol -1 , E L=48.05 kJ·mol -1 .The new characteristics of oscillation period have been investigated in detail. The intermediate and the end product of the oscillatory reaction is proposed and the possible mechanism have been analysed. 乙酰丙酮 化学振荡反应 机理 diacetone chemical oscillatory reaction mechanism O623.52 1999-04-01 2021-04-01 4