Kinetics of the First Order Autocatalytic Decomposition Reaction of Nitrocellulose (13.86% N)

• 作 者: 郭鹏江 胡荣祖 宁斌科 杨正权 宋纪蓉 史启祯 路桂娥 江劲勇
• 机 构: Shaanxi Key Laboratory of Physico-Inorganic Chemestry,Department of Chemistry,Northwest University,S
• 出 处: Chinese Journal of Chemistry
• 发表日期: 2004年01期
• 关键词: Arrhenius kinetics isothermal latter deviation Powell heating ingredient remaini

The kinetics of the first order autocatalytic decomposition reaction of nitrocellulose (NC, 13.86% N) was stud-ied by using DSC. The results show that the DSC curve for the initial 50% of conversion degree of NC can be de-scribed by the first order autocatalytic equation dy/dt=-10~(16.3)exp(-181860/RT)y-10~(16.7)exp(-173050/RT)y(1-y) and that for the latter 50% conversionrrrrrrrrndegree of NC described by the reaction equations dy/dt=-10~(16.4)exp(-154820/RT)y(n=1)rrrrrrrrn and dy/dt=-10~(16.9)exp(-155270/RT)y~(2.80)(n≠1).

The results show that the DSC curve for the initial 50% of conversion degree of NC can be de-scribed by the first order autocatalytic equation dy / dt = -10 ~ (16.3) exp (-181860 / RT) y-10 ~ (16.7) exp (-173050 / RT) y (1-y) and that for the latter 50% conversion r r r r r r r r ndegree of NC described by the reaction equations dy / dt = -10 ~ 16.4 exp (-154820 / RT) y (n = 1) r r r r r r r n and dy / dt = -10 ~ (16.9) exp (-155270 / RT) y ~ (2.80) (n ≠ 1).