含能材料2026，Vol.34Issue(5)：501-512,12.DOI:10.11943/CJEM2026054
β-HMX在二甲基亚砜-醇类二元混合溶剂中的溶解度与热力学性质研究
Solubility and Thermodynamic Properties of β-HMX in DMSO-alcohol Binary Solvent Mixtures
摘要
Abstract
To supplement the scarce basic solubility data of cyclotetramethylene tetranitramine(HMX)in dimethyl sulfoxide(DMSO)-alcohol mixed solvent systems and solve the technical bottleneck restricting the optimization of HMX crystallization process,the solubility of HMX in three binary mixed solvents of DMSO-methanol,DMSO-ethanol and DMSO-n-propanol was measured via the static method within the temperature range of 293.15-343.15 K.The experimental solubility data were correlat-ed and fitted by the Apelblat model,Jouyban-Acree model and NRTL model,and the dissolution thermodynamic properties of HMX were further calculated and analyzed based on the NRTL model.The results show that the solubility of HMX in the three mixed solvent systems increases significantly with the rise of temperature and DMSO mole concentration.The Apelblat model ex-hibits the optimal correlation performance for the solubility data of the systems,with the average relative deviation(ARD)less than 5%and the root-mean-square deviation(RMSD)less than 0.11%,which is superior to the other two models.Thermody-namic analysis indicates that the dissolution process of HMX in all three DMSO-alcohol mixed solvent systems is endothermic,entropy-driven and spontaneous.关键词
奥克托今(β-HMX)/溶解度/活度系数法/溶解热力学性质Key words
HMX/solubility/activity coefficient method/dissolution thermodynamics properties分类
军事科技引用本文复制引用
何延,吴灏,翟连杰,蔡荣斌,许诚,胡建建,黄俊瑞,赵雪..β-HMX在二甲基亚砜-醇类二元混合溶剂中的溶解度与热力学性质研究[J].含能材料,2026,34(5):501-512,12.基金项目
国家自然科学基金(22105155)National Natural Science Foundation of China(No.22105155) （22105155）
