BEHAVIOR OF OF AQUEOUS UREA NEAR THE SINGULARITY POINT
V. P. Korolev
Keywords: urea, aqueous solutions, volumetric properties
Pages: 1240-1244
Abstract
Equations for the apparent molar volume φ of urea in aqueous solution were obtained. In contrast to [3, 4], according to the new relations here, φ remains finite at a singularity temperature Ts, and φ0 = 0. At T → Ts, the partial expansibility is finite, whereas the thermal coefficient → +∞. A transition to calculation of the volumetric characteristics of the D2O-(ND2)2CO and Т2O-(NТ2)2CO systems is done by temperature scaling.
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