采用扩展Wilson理论研究电解质的临界相对湿度与溶解度的关系(英文)

Using extended Wilson model to study the relationship between critical relative humidity and solubility of electrolytes

摘要:
根据热力学原理, 电解质药物临界湿度与溶解度之间存在密切联系。作者从理论上探索了电解质的溶解度与临界相对湿度的关系, 并分别根据拉乌尔定理和扩展的Wilson模型, 由电解质的溶解度数据计算了饱和溶液中溶剂的活度即电解质的临界相对湿度。结果表明, 按拉乌尔定理计算的临界相对湿度值与其文献报道值有明显的系统误差; 按扩展的Wilson模型来计算则与文献报道值相当一致。

Abstract:
Based on thermodynamic principle, the critical relative humidity of electrolytes is closely related to their solubility. The authors explored the relationship theoretically and calculated critical relative humidity of 21 electrolytes from their solubility in the light of Raoult’s law and extended Wilson model. The results indicate that the critical relative humidity values calculated by Raoult’s law can not accord with the reported ones and there is a systematic error in the high concentration range; while these calculated by extended Wilson model are comparable to the reported ones.