Thermochemical Properties of Dissolution of Nitroguanidine in Dimethyl Sulfoxide and N,N-Dimethylformamide

Author:

Xiao Li Bai1,Xing Xiao Ling1,Zhao Feng Qi1,Gao Hong Xu1,Na Li1,Yang Luo1,Yi Jian Hua1

Affiliation:

1. Xi’an Modern Chemistry Research Institute

Abstract

Abatract. The enthalpies of dissolution for nitroguanidine (NQ) in dimethyl sulfoxide (DMSO) andN,N-dimethylformamide (DMF) were measured using a RD496-2000 Calvet microcalorimeter at 298.15 K. Empirical formula for the calculation of the enthalpies of dissolution (ΔdissH) was obtained from the experimental data of the dissolution processes of NQ in DMSO and DMF. The corresponding kinetic equations describing the dissolution processes were dα/dt=10-1.49(1-α)0.94for the dissolution of NQ in DMSO and dα/dt=10-1.59(1-α)0.90for the dissolution of NQ in DMF.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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