Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride

K. Rajagopal; S. S. Jayabalakrishnan

doi:10.1016/S1004-9541(10)60241-8

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Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride

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- Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride
- Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride
- 中国化学工程学报（英文版） 2010年18卷第3期页码：425-445
- Affiliations：
  
  1. Department of Physics, Government College of Engineering Tirunelveli- Tamil Nadu,India,627007
  2. Department of Physics, P. S. R. Engineering College, Sivakasi-0 Tamil Nadu,India,626 14
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(10)60241-8
  中图分类号：
- 纸质出版：2010
- Accepted：
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K. Rajagopal, S. S. Jayabalakrishnan. Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride[J]. 中国化学工程学报（英文版）, 2010,18(3):425-445.

K. Rajagopal, S. S. Jayabalakrishnan. Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride[J]. , 2010, 18(3): 425-445.
K. Rajagopal, S. S. Jayabalakrishnan. Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride[J]. 中国化学工程学报（英文版）, 2010,18(3):425-445. DOI： 10.1016/S1004-9541(10)60241-8.

K. Rajagopal, S. S. Jayabalakrishnan. Effect of Temperature on Volumetric and Viscometric Properties of Homologous Amino Acids in Aqueous Solutions of Metformin Hydrochloride[J]. , 2010, 18(3): 425-445. DOI： 10.1016/S1004-9541(10)60241-8.

摘要

Abstract

Density(

)and viscosity(

)are measured for glycine

DL-

-alanine DL-

-valine

and DL-

-leucine in 0.05

0.10

0.15 and 0.20 mol·L

-1

aqueous metformin hydrochloride at 308.15

313.15 and 318.15 K.The measured values are used to estimate some important parameters

such as partial molal volume

standard partial molal volume

transfer volume Δ

hydration number

the second derivative of infinite dilution of partial molal volume with respect to temperature

viz.

∂

/∂

viscosity

-coefficient

variation of

with temperature

viz

free energy of activation per mole of solvent Δμ

and solute Δμ

of the amino acids.These parameters are interpreted in terms of solute-solute and solute-solvent interactions and structure making/breaking ability of solutes in the given solution.In addition

viscosity

-coefficient

and Δμ

are split into group contributions(NH

COO

)and —CH

of the amino acids using their linear correlation and their behavior is discussed.

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