US EPA

3578577 

Journal Article 

Determination and correlation for solubility of aromatic acids in solvents 

Ma, PS; Xia, Q 

2001 

Yes 

Chinese Journal of Chemical Engineering
ISSN: 1004-9541 

9 

1 

39-44 

English 

WOS:000167502400008 

http://://WOS:000167502400008
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Solubility of benzoic acid, terephthalic acid and 2,6-naphthalene dicarboxylic Mid in water, acetic acid, N,N-dimethylformamide, N,N-dimethylacetamide, dimethyl sulphoxide and N-methyl-2-ketopyrrolidine were measured by dynamic method. The solubilities were calculated by UNIFAC group contribution method, in which new groups, BCCOOH and NCCOOH, were introduced to express the activity coefficients of aromatic acids and new interaction parameters of the new groups were expressed as the function of temperature, which were determined from the experimental data. The new interaction parameters provided good calculated result. The experimental data were also correlated with Wilson and lambda -h models, and results were compared with present UNIFAC model. 

solid-liquid equilibrium; solubility; UNIFAC group contribution method; 2,6-naphthalene dicarboxylic acid