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http://nopr.niscpr.res.in/handle/123456789/18167| Title: | A study on partial molar volumes of some organic acids in binary aqueous solutions of urea at different temperatures |
| Authors: | Parmar, M L Sharma, O P Guleria, M K |
| Issue Date: | Sep-2004 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | Int. Cl.7 G01N 9/04 |
| Abstract: | Partial molar volumes of ascorbic, citric and tartaric acids, at different concentrations have been determined in binary aqueous solutions of urea (1, 2, 3, 5 and 7 m of urea) at 298 K and in 1.0 m urea at four equidistant temperatures. The data have been evaluated using Masson equation and the obtained parameters have been interpreted in terms of solute-solute and solute solvent interactions. The partial molar volumes vary with temperature as a power series of temperature. Structure making/breaking capacities of the organic acids have been inferred from the sign of [∂ 2ϕvo/∂T2]p, i.e. second de rivative of partial molar volume with respect to temperature at constant pressure. All the three organic acids behave as structure breakers in binary aqueous solutions of urea. |
| Page(s): | 1868-1871 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.43A(09) [September 2004] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 43A(9) 1868-1871.pdf | 913.95 kB | Adobe PDF | View/Open |
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