PHYSICOCHEMICAL BASIS OF COMPOSITION-PROPERTY RELATIONSHIPS AND THE FORMATION OF NEW COMPOUNDS IN THE ACETATE CARBAMIDE-MONOETHANOLAMINE AND ACETATE CARBAMIDE-DIETHANOLAMINE SYSTEMS

Abstract

The physicochemical interactions of acetate carbamide with monoethanolamine and diethanolamine were investigated to determine composition-property relationships and the conditions for forming new acetate carbamide ammonium compounds. Density, viscosity, refractive index, and pH of aqueous solutions at 25 °C were measured across various component concentrations. The “composition-property” diagrams revealed distinct phase transformations indicating the formation of acetate carbamide-monoethanolammonium and acetate carbamide-diethanolammonium compounds. The optimal synthesis condition was identified for a 60% acetate carbamide solution mixed with monoethanolamine in a 4:1 ratio, yielding a neutral pH ≈ 6.8, refractive index 1.4052, and density 0.754 g/cm³. The obtained data provide a physicochemical basis for the synthesis of new physiologically active substances with potential agrochemical applications.