Xinhua Zhao, Jianxin Xu, Luyao Zhang, Lizhen Chen, Jianlong Wang
{"title":"Solubility and thermodynamics properties of FOX-7 in binary (N-methyl pyrrolidone + acetone, ethanol, water) mixed solvents","authors":"Xinhua Zhao, Jianxin Xu, Luyao Zhang, Lizhen Chen, Jianlong Wang","doi":"10.1080/07370652.2021.2017075","DOIUrl":null,"url":null,"abstract":"ABSTRACT The solubility of 1,1-diamino-2,2-dinitroethylene (FOX-7) was measured by using a laser monitoring system in binary (N-methyl pyrrolidone + acetone, ethanol, water) mixed solvents with temperatures changing from 293.15 K to 333.15 K under 0.1 MPa. The experimental solubility data for FOX-7 were correlated and fitted to thermodynamic models such as van’t Hoff model, modified Apelblat model, and Yaws model. The results show that the solubility of FOX-7 increases with increasing temperature and N-methyl pyrrolidone ratio. Three models can be used to correlate the solubility data commendably. However, the Yaws model fits best for the solvent system selected in this work. At last, the standard dissolution enthalpy, standard dissolution entropy, and standard Gibbs free energy of FOX-7 can be calculated. It was found that the dissolution of FOX-7 in all test solvents was endothermic and non-spontaneous.","PeriodicalId":15754,"journal":{"name":"Journal of Energetic Materials","volume":"57 1","pages":"632 - 655"},"PeriodicalIF":1.7000,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Energetic Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/07370652.2021.2017075","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
ABSTRACT The solubility of 1,1-diamino-2,2-dinitroethylene (FOX-7) was measured by using a laser monitoring system in binary (N-methyl pyrrolidone + acetone, ethanol, water) mixed solvents with temperatures changing from 293.15 K to 333.15 K under 0.1 MPa. The experimental solubility data for FOX-7 were correlated and fitted to thermodynamic models such as van’t Hoff model, modified Apelblat model, and Yaws model. The results show that the solubility of FOX-7 increases with increasing temperature and N-methyl pyrrolidone ratio. Three models can be used to correlate the solubility data commendably. However, the Yaws model fits best for the solvent system selected in this work. At last, the standard dissolution enthalpy, standard dissolution entropy, and standard Gibbs free energy of FOX-7 can be calculated. It was found that the dissolution of FOX-7 in all test solvents was endothermic and non-spontaneous.
期刊介绍：
The Journal of Energetic Materials fills the need for an international forum of scientific and technical interchange in the disciplines of explosives, propellants, and pyrotechnics. It is a refereed publication which is published quarterly. Molecular orbital calculations, synthetic and analytical chemistry, formulation, ignition and detonation properties, thermal decomposition, hazards testing, biotechnology, and toxicological and environmental aspects of energetic materials production are appropriate subjects for articles submitted to the Journal.
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