MACROSCOPIC AND VIBRATIONAL PROPERTIES OF KH2PO4 AQUEOUS-SOLUTIONS

Electrical conductivity, viscosity and density of KH2PO4 (KDP) aqueous solutions have been measured as a function of concentration from 0.1 M up to saturation at temperatures of 25, 50 and 100-degrees-C. These results are interpreted using as microscopic description of the soluti on the information obtained from Raman spectroscopy in the same temper atures and concentration ranges. The phosphate dimerization was found to pay the most important role in the analysis of the macroscopic prop erties. This analysis was performed by separating in the calculations the contributions arising from the monomer and dimer phosphate species .