Conductometric investigation of ceftriaxone disodium in aqueous solutions of 1-propanol and 2-propanol

被引：5
|
作者：
Mehrdad, Abbas [1 ]
Hajikarimi, Mohsen [1 ]
机构：
[1] Univ Tabriz, Fac Chem, Dept Phys Chem, Tabriz, Iran
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2020年 / 142卷
关键词：
Ceftriaxone disodium; Molar conductivity; 1-Propanol; 2-Propanol; SALT HEMIHEPTAHYDRATE; WATER MIXTURES; SOLUBILITY; DENSITY; ELECTROLYTES; BEHAVIOR; ACID; DISSOCIATION; VISCOSITIES; CONDUCTANCE;
D O I：
10.1016/j.jct.2019.105972
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Often common organic solvents have been used in extraction and purification of ceftriaxone disodium from aqueous solution. Therefore, in this study the conductometric properties of ceftriaxone disodium were investigated in aqueous solutions of 1-propanol and 2-propanol at T/K = (288.15-308.15). The conductivities data were analysed by Fuoss-Onsager conductivity equation. The obtained results indicate that the molar conductivity increases with temperature. Also, the molar conductivity increases with increasing concentration of 1-propanol and 2-propanol. The activation enthalpy of charge transfer is calculated from the temperature dependency of molar conductivity. The activation enthalpy of charge transfer in water is lower than that of aqueous solutions of 1-propanol and 2-propanol. The calculated Walden products reveal that ion-solvent interactions in aqueous solutions of 1-propanol and 2-propanol are weaker than that of water. (C) 2019 Elsevier Ltd.
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页数：9
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