测试科学与仪器2018，Vol.9Issue(3)：226-232,7.DOI:10.3969/j.issn.1674-8042.2018.03.004
硝基胍在水和有机溶剂中的固液相平衡数据测定与关联(298.15 K-338.15 K)
Measurement and correlation of solid-liquid equilibrium data for nitroguanidine in water and organic solvents from 298.15 K to 338.15 K
陈丽珍 1赵重阳 1张乐 1刘圆圆 1王建龙 1曹端林1
作者信息
- 1. 中北大学 化学工程与技术学院,山西 太原 030051
- 折叠
摘要
Abstract
Nitroguanidine(NQ)is a high-energy and low-sensitivity explosive and solid-liquid equilibrium data are significant for study on crystallization of NQ. The solubilities of NQ in water, dimethyl sulfoxide, N, N-dimethylformamide, 1 ,4-butyrolactone and dimethyl sulfoxide + water, N, N-dimethylformamide + water were measured by dynamic laser monitoring within a temperature range from 298.15 K to 338.15 K.The experimental data were correlated by modified Apelblat equation,λh equation,CNIBS/R-K model,and Jouyban-Acree model.The results show that the four thermodynamic models can all be used to predict solubility with high accuracy.Accrding to the Akaike’s information criterion (AIC),the better models for correlating the solubility of NQ are judged.Additionally,the dissolution enthalpy,entropy and Gibbs free energy were calculated by the van’t Hoff equation.关键词
硝基胍(NQ)/溶解度/关联模型/热力学特性Key words
nitroguanidine (NQ)/solubility/correlation models/thermodynamic properties分类
化学化工引用本文复制引用
陈丽珍,赵重阳,张乐,刘圆圆,王建龙,曹端林..硝基胍在水和有机溶剂中的固液相平衡数据测定与关联(298.15 K-338.15 K)[J].测试科学与仪器,2018,9(3):226-232,7.
