碱金属硝酸盐在1,2-丙二醇—水混合溶剂中15 ℃和45 ℃的溶解行为研究

张晖英; 李淑妮; 翟全国; 欧阳淼; 蒋育澄; 胡满成

碱金属硝酸盐在1,2-丙二醇—水混合溶剂中15 ℃和45 ℃的溶解行为研究

1.
陕西师范大学化学化工学院陕西省大分子科学重点实验室,西安 710062;
2.
河池学院化学与生命科学系,广西宜州 546300

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中图分类号: O616
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出版历程
- 收稿日期: 2013-02-01
- 修回日期: 2013-05-01
- 刊出日期: 2013-09-25

Dissolving behaviors of alkali metal nitrates in the mixed solvents of CH₃CHOHCH₂OH-H₂O at 15 ℃ and 45 ℃

1.
Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China;
2.
Department of Chemistry and Life Science, Hechi University, Yizhou Guangxi 546300, China

摘要

摘要: 采用自制的相平衡研究装置，用密度-折光率联合的方法，测定了碱金属硝酸盐在1,2-丙二醇/水（0~1）混合溶剂中15 ℃和45 ℃时的平衡溶解度.利用DMA4500密度计和RXA170折光率仪测定了饱和溶液15 ℃和45 ℃下的密度和折光率.实验结果表明，随着混合溶剂中1,2-丙二醇含量增加，碱金属硝酸盐的溶解度降低.饱和溶液的密度随着混合溶剂中1,2-丙二醇含量的增加而减小，但折光率却呈现出增加的趋势.用四参数经验关联方程对所有饱和体系的溶解度﹑折光率及密度数据进行了拟合.盐析率结果表明，1,2-丙二醇对碱金属硝酸盐都有盐析作用，温度升高，盐析率稍微增大.
- 碱金属硝酸盐 /
- 1,2-丙二醇 /
- 溶解度 /
- 密度 /
- 折光率
Abstract: The equilibrium solubilities of alkali metal nitrates in the mixed solvents of CH3CHOHCH2OH/H2O (0~1) at 15 ℃ and 45 ℃, respectively, were studied by the of density-refractive index method on a self-made microdevice. The density and refractive index of the saturated solutions were also determined using DMA4500 densimeter and RXA170 refractive index detector at 15 ℃ and 45 ℃, respectively. The solubility and density for the saturated solutions were found to decrease with an increase concentration of 1,2-propylene glycol, while the refractive index trended to increase. The solubility data, density and refractive index of the saturated solutions have been equated for their relationship using four parameters empirical equation. The salting-out effect indicated that the alkaline metal salts were salted out by 1,2-propylene glycol, where the higher the temperature, the slightly bigger the salting-out rate.
- alkali metal nitrate /
- 1,2-Propylene glycol /
- solubility /
- density /
- refractive index

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参考文献(1)

[1]

［1］ ALBERTSSON P A. Partition of Cell Particles and Macromolecules［M］. New York: Wiley, 1986.

［2］ ASENJO J A, ANDREWS B. A. Aqueous two-phase systems for protein separation: phase separation and applications［J］. J Chromatogr A, 2012, 1238(5): 1-10.

［3］ MERCHUK J C, ANDREWS B A, ASENJO J A. Aqueous two-phase systems for protein separation: studies on phase inversion［J］. J Chromatogr B, 1998, 711(1-2): 285-293.

［4］雷红,李淑妮,翟全国,等. 298 .15和308.15 K时1,2-丙二醇+MCl (M=Na, K, Rb, Cs)+H2O三元体系的溶解度、密度和折光率［J］. 物理化学学报, 2012, 28(7):1599-1607.

［5］ MENG R, LI S N, ZHAI Q G, et al. Solubilities, densities, and refractive indices for the ternary systems glycerin + mcl+H2O (M=Na, K, Rb, Cs) at (298.15 and 308.15) K［J］. J Chem Eng Data, 2011, 56(12): 4643-4650.

［6］ ZHOU Y H, LI S N, ZHAI Q G, et al. solubilities, densities and refractive indices for the ternary systems ethyleneglycol + MCl + H2O(M = Na, K, Rb, Cs) at (15 and 35) ℃［J］. J Chem Thermodyn, 2010, 42(6):764-772.

［7］ ZHOU Y H, LI S N, ZHAI Q G, et al. Compositions, densities, and refractive indices for the ternary systems ethylene glycol + NaCl+ H2O, ethylene glycol+ KCl + H2O, ethylene glycol+ RbCl+ H2O, and ethylene glycol+ CsCl+ H2O at 298.15 K［J］. J Chem Eng Data, 2010, 55(3):1289-1294.

［8］李淑妮,翟全国,胡满成，等. CsNO3-C2H5OH-H2O三元体系在不同温度时的平衡溶解度及相关物性［J］. 应用化学, 2004, 21(9): 895-899.

［9］ HO-GUTIERREZ I V, CHELUGET E, VERA J H, et al. Liquid-liquid equilibrium of aqueous mixtures of poly(ethy1ene glycol) with Na2SO4 or NaCl［J］. J Chem Eng Data, 1994, 39(2): 245-248.

［10］ HU M C, ZHAI Q G, JIANG Y C, et al. Liquid-liquid and liquid-liquid-solid equilibrium in PEG + Cs2SO4 + H2O［J］. J Chem Eng Data, 2004 ,49(5): 1440-1443.

［11］ GALLEGUILLOS H R, TABOADA M E, GRABER T A. Compositions, densities, and refractive indices of potassium chloride + ethanol+ water and sodium chloride+ ethanol+water solutions at (298.15 and 313.15) K［J］. J Chem Eng Data, 2003, 48(2): 405-410.

［12］ TABOADA M E, HERNANDEZ P C, GALLEGUILLOS H R, et al. Behavior of sodium nitrate and caliche mineral in seawater: Solubility and physicochemical properties at different temperatures and concentrations［J］. Hydrometallurgy, 2012, 113-114: 160-166.

［13］ HU M C, ZHANG X L, LI S N, et al. Solubility and refractive index for the ternary system propanol-rubidium nitrate-water at 25, 35, and 45 ℃ ［J］. Russ J Inorg Chem, 2005, 50(9): 1434-1440.

［14］ HU M C, JIN L H, JING Y C, et al. Solubility of cesium nitrate in aqueous alcohol solutions at (25, 35 and 45) ℃ ［J］. J Chem Eng Data, 2005, 50(4): 1361-1364.

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碱金属硝酸盐在1,2-丙二醇—水混合溶剂中15 ℃和45 ℃的溶解行为研究

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Dissolving behaviors of alkali metal nitrates in the mixed solvents of CH₃CHOHCH₂OH-H₂O at 15 ℃ and 45 ℃

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碱金属硝酸盐在1,2-丙二醇—水混合溶剂中15 ℃和45 ℃的溶解行为研究

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出版历程

Dissolving behaviors of alkali metal nitrates in the mixed solvents of CH3CHOHCH2OH-H2O at 15 ℃ and 45 ℃

计量

出版历程

目录

Dissolving behaviors of alkali metal nitrates in the mixed solvents of CH₃CHOHCH₂OH-H₂O at 15 ℃ and 45 ℃