摘要
利用全自动反应量热器RC1e分别测定了二种3-硝基-1,2,4-三唑-5-酮(NTO)合成工艺方法的硝化反应热释放速率、热释放量、传热系数及比热容等热力学数据,结果表明:方法 1(以质量分数为98%硝酸为硝化剂)硝化反应过程的最大热释放速率为162.84 W,热释放量为118.81 kJ×mol^(-1),传热系数为144.89 W×K-1×m-2,比热容为1.72 J×K-1×g-1,方法 2 (以质量分数为70%硝酸为硝化剂)则分别为117.11 W、64.20 kJ×mol^(-1)、170.87 W×K-1×m^(-2)和2.01 J×K-1×g^(-1),表明方法 2合成过程更加安全。
Thermodynamic parameters of heat flow curve, heat transfer coefficient and heat capacity in nitration reaction of two 3-nitro-1,2,4-triazle-5-one（NTO） synthesis processes were measured with a reaction calorimeter（RC1 e）. The results show that the maximum heat release rate of process 1（with 98%（wt） nitric acid as the nitrating agent） is -162.84 W, and the total exothermic heat of the nitration reaction is 118.81 kJ×mol^-1, the heat transfer coefficient is 144.89 K-1×m^-2 and the heat capacity is 1.72 J×K^-1×g-1. These data of process 2（with 70%（wt） nitric acid as the nitrating agent） are 117.11 W, 64.20 kJ×mol^-1, 170.87 K-1×m-2 and 2.01 J×K^-1×g^-1, respectively. The results indicate that process 2 is a safer procedure in this study.
作者
常佩
周诚
王伯周
黄新萍
朱勇
CHANG Pei;ZHOU Cheng;WANG Bo-zhou;HUANG Xin-ping;ZHU Yong(Xi＇an Modern Chemistry Research Institute,Xi＇an 710065,China)
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2018年第5期1223-1227,共5页
Journal of Chemical Engineering of Chinese Universities
关键词
物理化学
NTO
反应热
安全性分析
physical chemistry
NTO
heat of reaction
safety analysis
