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Citation: Liu Wen-Bin, Wang Jian-Ji, Wang Cai-Lan, Lu Jin-Suo. Viscosity of Amino Acids in Methanol-Water Mixtures[J]. Acta Physico-Chimica Sinica, ;1992, 8(06): 742-748. doi: 10.3866/PKU.WHXB19920606 shu

Viscosity of Amino Acids in Methanol-Water Mixtures

1.
Department of Chemistry, Henan Normal University, Xinxiang 453002

Received Date: 20 June 1991
Available Online: 15 December 1992

Viscosities and densities at 293.15 and 298.15 K are reported in this paper for glycine and DL-alanine in methanol-water mixed solvent. The viscosity B coefficients and partial molar volumes at infinite dilution have been calculated. The experimental results show that B coefficients reach a minimum at about 15% for glycine and 25% for DL-alanine respectively. The effect of amino acids on solvent structure has been discussed. Also, the activation parameters for viscous flow for amino acids in methanol-water mixtures have been calculated.
- Viscosity β coefficient; Solvation; Prtial molar volume; Activation parameter
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