Abstract
Isopiestic vapor pressure measurements at 25° are reported for the system water-α-aminon-butyric acid-urea. The concentration varied from 0 to 2 m for the amino acid and from 0 to 9 m for urea. The results for dilute solutions are discussed in terms of a model which includes hydrophobic bonding of the amino acid, dimerization of urea, and the effect of urea on the acid dimerization. A method for obtaining a series expression for the water activity assuming an arbitrary model is summarized.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 901-905 |
| Number of pages | 5 |
| Journal | Journal of physical chemistry |
| Volume | 71 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1967 |
| Externally published | Yes |