Molar Volume and Viscosities of Hydroxylamine Hydrochloride in Methanol-Water (50:50 v/v) at 303.15 K

Abstract

Densities and viscosities of hydroxylamine hydrochloride (NH₃OH·Cl) were measured as a function of their concentration in methanol-water (50:50 v/v) at 303.15 K. This data is used to determine value of apparent molar volume (φ_v), limiting apparent molar volume (φ* _v), experimental slope (S* _v), molar volume (V) and excess molar volume (V^E). The viscosity of electrolyte systems in mixed solvent was also studied. Viscosity data was used to determine B-coefficient (B) and constant characteristic of ion-ion interactions (A), excess viscosity (η^E) and excess molar free energy of activation of flow (G^E). The interaction parameter Gurenberg and Nissan (d) was also calculated and reported. The parameter are analyzed to evaluated to understand solute-solvent interaction.