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Studies on the Kinetics of the First Order Autocatalytic Decomposition Reaction of Highly Nitrated Nitrocellulose

Authors:

N Binke L Rong Y Zhengquan W Yuan Y Pu Hu Rongzu Y Qingsen

Institution:

(1) Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China;(2) Xi'an Modern Chemistry Research Institute, Xi'an, 710065, P. R. China

Abstract:

The kinetics of the first order autocatalytic decomposition reaction of highly nitrated nitrocellulose (HNNC, 14.14%N) was studied by using thermogravimetry (TG). The results show that the TG curve for the initial 50% of mass-loss of HNNC can be described by the first order autocatalytic equation

$\frac{{{\text{d}}y}} {{dt}} = - 10^{16.4} \exp \left( { - \frac{{210380}} {{RT}}} \right)y - 10^{16.7} \exp \left( { - \frac{{171205}} {{RT}}} \right)y(1 - y)$

and that for the latter 50% mass-loss of HNNC described by the reaction equations

$\frac{{dy}} {{dy}} = - 10^{16.3} \exp \left( { - \frac{{169483}} {{RT}}} \right)y\quad (n = 1)$

and

$\frac{{dy}} {{dt}} = - 10^{16.8} \exp \left( { - \frac{{165597}} {{RT}}} \right)y^{2.61} \quad (n \ne 1)$

This revised version was published online in November 2005 with corrections to the Cover Date.

Keywords:

first order autocatalytic reaction HNNC kinetics TG

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