Salt Effect of Vapour-Liquid Equilibrium in the Formic Acid-Acetic Acid-Water-Calcium Chloride System ( Ⅱ )

Abstract

Abstract: The vapour-liquid equilibrium (VLE) salt effect and the influence of salt concentration on the VLEsalt effect in the HAc-HCO₂H-H₂O-CaCl₂ system were studied. The amounts of CaCl₂ used were 0. 8 and 1. 0(mol/kg solvent) respectively. When the salt concentration is different,the changes of salt effect were expressed by the curves of volatility equal to 1 and several regions of different volatilities. The result obtained show that CaCl₂ causes salting-out of the formic acid and acetic acid, and the salting-out increases with the increase of the salt concentration.

Key words: Formic acid-acetic acid-water, Vapour-liquid equilibrium (VLB), Salt effect

TrendMD:

Li Xi, Jiang Fuming, Wang Xinxing. Salt Effect of Vapour-Liquid Equilibrium in the Formic Acid-Acetic Acid-Water-Calcium Chloride System ( Ⅱ )[J]. Chem. J. Chinese Universities, 1990, 11(10): 1101.

[1]	SUN Qi-Long, WANG Chao-Yang, REN Bi-Ye, LIU Xin-Xing, ZENG Fang, LIU Ping, TONG Zhen. Effects of Added Salts on Intra-and Inter-molecular Fluorescence NRET of Sulfonate Polyelectrolytes [J]. Chem. J. Chinese Universities, 2003, 24(9): 1695.
[2]	LI Hui-Yun, SUN Yu, YUE Ying-Hong, GAO Zi . Hydrolysis and Structural Disintegration of MCM-41 Molecular Sieves [J]. Chem. J. Chinese Universities, 1999, 20(2): 272.
[3]	RUAN Wen-Juan, ZHU Zhi-Aug, CHEN Hong-Wei, LIN Hua-Kuan, SHAO Ying, YANG Xiu-Lin, CHEN Rong-Ti. Kinetic Studies on the Formation Reaction of Cadmium(Ⅱ)with Porphyrin and the Salt Effect [J]. Chem. J. Chinese Universities, 1997, 18(10): 1669.
[4]	SUN Ren-Yi, ZHANG Qing-Zhi. Prediction of Salt Effect on Vapor-Liquid Equilibrium in Ethanol-Water System by Scaled Particle Theory [J]. Chem. J. Chinese Universities, 1996, 17(4): 601.
[5]	LIU Tain-Jun, WU Shi-Kang. Some Important Factors in the Photodimerization Reaction of α,ω-Biscoumarin Long Chain Compounds [J]. Chem. J. Chinese Universities, 1996, 17(11): 1754.
[6]	WANG Feng-Yun, YU Bo-Heng, CHEN Min-Sheng, YE Jing-Xian, JIN Jia-Jun . Theoretical Prediction for the Reaction Rates in Salt-Aqueous Binary and Salt-Aqueous-Nonaqueous Ternary Systems [J]. Chem. J. Chinese Universities, 1993, 14(9): 1275.
[7]	LIU Wen-Bin, WANG Jian-Ji, WANG Cai-Lan, LU Jin-Suo . T-P-X Relationship of the Water-Acetonitrile Mixtures Containing Salt [J]. Chem. J. Chinese Universities, 1993, 14(3): 397.
[8]	YUAN Chang-Bo, YANG Jia-Zhen . Solubilities and Activity Coefficients of CO₂ in NaCl+15 Mass% Glucose-Water Mixture from 278.15 to 318.15K [J]. Chem. J. Chinese Universities, 1993, 14(1): 80.
[9]	LI Xi, XU Qin-Tang, JIANG Fu-Ming, LIU Xiao-Jiang . The Relationship Between Dipole Moment of the Single Solvent for Formic Acid, Acetic Acid and Water and Concentration of Salt [J]. Chem. J. Chinese Universities, 1992, 13(9): 1260.
[10]	LIU Wen-bin, WANG Jian-ji, BAI Tong-chun, WANG Cai-lan, LU Jin-suo . Isobaric Vapor-Liquid Equilibrium of Methanol- Ethanol-Water-Salt Systems [J]. Chem. J. Chinese Universities, 1992, 13(4): 521.
[11]	Xu Qin-tang, Luo Ru-yi, Kang Hong-ye, Li Xi, Jiang Fu-ming. Salt Effect of Vapor-Liquid Equilibrium in the System of Formic Acid-Acetic Acid-Water Containing Magnesium Chloride [J]. Chem. J. Chinese Universities, 1991, 12(6): 799.
[12]	Bai Tongchun, Lu Jinsuo, Zhou Xishun . Studies on Salt Effect in Solution by Gas-Liquid Chromatdgrapby [J]. Chem. J. Chinese Universities, 1990, 11(8): 859.
[13]	Li Xi, Jiang Fuming, Kang Hongye, Lou Ruyi, Xiu Qintang, Fan Shuguang . A Study on Salt Effect of Vapour-Liquid Phase Equilibrium in the Formic Acid-Acetic Acid-Water-Calcium Chloride System [J]. Chem. J. Chinese Universities, 1988, 9(4): 374.
[14]	Li Xi, Jiang Fuming, Kang Hongye, Luo Ruyi, Xu Qintang, Fan Shuguang . Salt Effect of Vapor-Liquid Phase Equilibrium in the System Formic Acid-Acetic Acid-Water-Sodium Acetate [J]. Chem. J. Chinese Universities, 1988, 9(11): 1150.

Salt Effect of Vapour-Liquid Equilibrium in the Formic Acid-Acetic Acid-Water-Calcium Chloride System ( Ⅱ )

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 14

Recommended Articles

Metrics

Comments