298.15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H<sub>2</sub>O三元体系的溶解度、密度和折光率

引用本文: 雷红, 李淑妮, 翟全国, 张晖英, 蒋育澄, 胡满成. 298.15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H₂O三元体系的溶解度、密度和折光率[J]. 物理化学学报, 2012, 28(07): 1599-1607. doi: 10.3866/PKU.WHXB201204281 shu

Citation: LEI Hong, LI Shu-Ni, ZHAI Quan-Guo, ZHANG Hui-Ying, JIANG Yu-Cheng, HU Man-Cheng. Solubility, Density and Refractive Index for the Ternary Systems of 1,2-Propanediol, MCl (M=Na, K, Rb, Cs) and H₂O at 298.15 and 308.15 K[J]. Acta Physico-Chimica Sinica, 2012, 28(07): 1599-1607. doi: 10.3866/PKU.WHXB201204281 shu

298.15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H₂O三元体系的溶解度、密度和折光率

基金项目:
国家自然科学基金(21171111) (21171111)

中央高校研究基金(GK201001005)资助项目 (GK201001005)

摘要:

系统研究了1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H₂O三元体系在298.15 和308.15 K时的等温相平衡. 采用硝酸汞滴定法测定了体系中无机盐的含量, 采用安东帕RXA170 折光率仪及DMA4500 密度计测定了所有体系的折光率和密度数值. 报道了1,2-丙二醇质量分数从0增加到0.9过程中饱和及不饱和三元溶液体系的等温溶解度、密度和折光率数据. 实验结果发现, 随着1,2-丙二醇的不断加入, 饱和溶液的溶解度和密度均呈现出减小的趋势, 而折光率的变化则呈现出相反的趋势. 采用经验方程关联了不同醇水比条件下不饱和溶液的密度和折光率实验数据, 获得了较为理想的拟合结果. 本研究的开展充实了碱金属盐在混合溶剂中的热力学数据, 为相关溶液化学研究奠定了基础.

关键词:

English

Solubility, Density and Refractive Index for the Ternary Systems of 1,2-Propanediol, MCl (M=Na, K, Rb, Cs) and H₂O at 298.15 and 308.15 K

1.
Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi?an 710100, P. R. China
Received Date: 09 January 2012
Available Online: 07 June 2012
Fund Project:
国家自然科学基金(21171111)

中央高校研究基金(GK201001005)资助项目

Abstract:

In this paper, the liquid-solid equilibrium for the ternary systems composed of 1,2-propanediol, MCl (M=Na, K, Rb, Cs), and H₂O were studied at 298.15 and 308.15 K, with the mass fraction of 1,2- propanediol ranging from 0 to 0.9. The solubilities, densities, and refractive indices of the saturated systems, and the densities and refractive indices of the unsaturated solutions are reported herein. The solubilities were determined via a titration method using mercury nitrate as the titrant. Refractive index and density data were measured using an Anton Paar RXA170 refractometer and Anton Paar DMA4500 densimeter, respectively. The experimental values of the solubilities and densities of the saturated solutions decreased with increasing 1,2-propanediol concentration, whereas different trends of increase were observed for the refractive indices. The experimental density and refractive index data for the unsaturated solutions increased with increasing 1,2-propanediol to water ratios. Empirical equations have been provided for these properties as a function of concentration. On the basis of the standard deviations, we concluded that the empirical equations could be satisfactorily used to correlate the solubility, density, and refractive index data of the investigated systems. These values will enrich the thermodynamics data for alkali metals in mixed solvents, and lay a foundation for any subsequent work.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

298.15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H₂O三元体系的溶解度、密度和折光率

English

Solubility, Density and Refractive Index for the Ternary Systems of 1,2-Propanediol, MCl (M=Na, K, Rb, Cs) and H₂O at 298.15 and 308.15 K

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

298.15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H2O三元体系的溶解度、密度和折光率

English

Solubility, Density and Refractive Index for the Ternary Systems of 1,2-Propanediol, MCl (M=Na, K, Rb, Cs) and H2O at 298.15 and 308.15 K

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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文章相关

通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

298.15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H₂O三元体系的溶解度、密度和折光率

Solubility, Density and Refractive Index for the Ternary Systems of 1,2-Propanediol, MCl (M=Na, K, Rb, Cs) and H₂O at 298.15 and 308.15 K

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs