首页|期刊导航|物理化学学报|不同温度下α-氨基酸在咖啡碱水溶液中的体积、粘度及折光率特性

不同温度下α-氨基酸在咖啡碱水溶液中的体积、粘度及折光率特性

Anwar Ali S.Sabir M.Tariq

物理化学学报2007，Vol.23Issue(1)：79-83,5.

不同温度下α-氨基酸在咖啡碱水溶液中的体积、粘度及折光率特性

Volumetric, Viscometric and Refractive Index Behaviors of α-Amino Acids in Aqueous Caffeine Solution at Varying Temperatures

Anwar Ali ¹S.Sabir ¹M.Tariq¹

作者信息

1. Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi-110025, India
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摘要

Abstract

Measurements of density(ρ), viscosity(η), and refractive index(n), were carried out on α-amino acids, DL-solution at 298.15, 303.15, 308.15, and 313.15 K. These measurements have been carried out to evaluate some important parameters, viz., apparent molar volume (φv), partial molar volume (φv0), transfer volume (φ0v (tr)), viscosity A and B coefficients of Jones-Dole equation, free energies of activation per mole of solvent (△μ0#1) and solute (△μ0#2),enthalpies (△H*) and entropies (△S*) of activation of viscous flow, variation of B with temperature ((a)B/(a)T)P, and molar refractive index (RD). These parameters have been interpreted in terms of solute-solute and solute-solvent interactions and structure making/breaking ability of solutes in the given solution.

关键词

Amino acids/Caffeine/Partial molar volume/Viscosity B coefficient/Refractive index

Key words

Amino acids/Caffeine/Partial molar volume/Viscosity B coefficient/Refractive index

分类

化学化工

引用本文复制引用

Anwar Ali,S.Sabir,M.Tariq..不同温度下α-氨基酸在咖啡碱水溶液中的体积、粘度及折光率特性[J].物理化学学报,2007,23(1):79-83,5.

物理化学学报

OA北大核心CSCDCSTPCD

ISSN：1000-6818

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