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Title 

Representation of solid-liquid equilibrium of L-ornithine-L-aspartate plus water plus methanol system using the Chen model for mixed-solvent electrolyte solution

Authors 

Ye Hoon KimSeung Joo HaamKee Kahhb KooYong Gun ShulJoo Hiuk SonJoon Ki Jung

Publisher 

American Chemical Society

Issue Date 

2001

Citation 

Journal of Chemical and Engineering Data, vol. 46, no. 6, pp. 1387-1391

Keywords 

phase equilibria

Abstract 

Solubility measurements were performed in the temperature range of 298-333 K, for a methanol content varying between 0 mass % and 90 mass %. The phase equilibrium condition of L-ornithine-L-aspartate (LOLA) + water + methanol and the mean ionic activity coefficients of LOLA in a ternary system were calculated by using the Chen model, allowing the description of the mixed-solvent electrolyte systems. The mean ionic activity coefficients were calculated with nine binary parameters: six parameters for the binaries LOLA + water (taken from conductance measurements) and water + methanol (taken from the literature) and three parameters for the binary LOLA + methanol (obtained by regression of solubility data). Using binary adjustable parameters and solubility data, the model satisfactorily correlates the ternary (LOLA + water + methanol) system over the entire range of temperature and concentrations.

ISSN 

0021-9568

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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