异烟酸铬（Ⅲ）配合物热分解脱水反应非等温动力学研究

STUDIES ON THE NON-ISOTHERMAL KINETICS OF THERMAL DEHYDRATION OF COMPLEX OF CHROMIUM(Ⅲ ) WITH ISONICTINIC ACID

本文对Ｃｒ２（Ｉｎｉｃ）３Ｃｌ３（Ｈ２Ｏ）３·５Ｈ２Ｏ配合物（Ｉｎｉｃ表示异烟酸根）进行了热分解脱水反应非等温动力学研究，运用Ａｃｈａｒ法与Ｃｏａｔｓ—Ｒｅｄｆｅｒｎ法，推断该热分解脱水反应为三级反应，其动力学方程为ｄａ／ｄｔ＝ＡｅｘＰ（－Ｅ／ＲＴ）·０．５（１—ａ）３，动力学补偿效应表达式为ｌｎＡ＝０．３０２７Ｅ—１．２９７９．

The kinetics of thermal dehydration of complex cr_2 (Inic)_3Cl_3 (H_2O)_3· 5H_2O (Inicdenotes isonicotinate) was studied under non-isothermal condition. The kinetic datawere analyzed by means of the Achar method and the Coats-Redfern method. The results show that thermal dehydration reaction is a third order reaction. The kinetic equation can be expressed as: da/dt = Aexp (- E/RT ). 0.5 (1 - α)￣3. The mathematical expression of the kinetic compensation effect is found to be: InA=0. 3027E-1. 2979.