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http://nopr.niscpr.res.in/handle/123456789/42155| Title: | Temperature of maximum density of aqueous solutions of some α-amino acids |
| Authors: | Kaulgud, M V Shrivastava, Anjali Mate, V K |
| Issue Date: | Oct-1991 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Temperatures of maximum density (TMD) at different low concentrations of aqueous solutions of glycine, α-alanine, 1-serine, aspartic acid, asparagine, leucine and isoleucine have been reported. The changes in TMD with respect to that of water vary non-linearly with concentration of the amino acid. By subtracting from the observed change in TMD (∆θ), an ideal contribution evaluated numerically, it is possible to calculate the structural part ∆θstr. The quadratic dependence of ∆θstr on amino acid concentration is given by ∆θstr = ax + bx2 (x= mole fraction) thus enabling a graphical evaluation of the interaction parameters a (solute-solvent) and b (solute-solute). Evaluation of limiting expansibilities of the amino acids at 4°C also corroborate the findings based on a values. |
| Page(s): | 834-838 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.30A(10) [October 1991] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 30A(10) 834-838.pdf | 337.61 kB | Adobe PDF | View/Open |
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