The apparent molal volume and adiabatic compressibility of L-arginine hydrochloride in water and aqueous tetrahydrofuran has been determined at 303.15 K from precise density and sound measurements. The experimental data has been used to evaluate various thermodynamic and acoustic parameters, like, partial molal volume at infinite dilution, partial molal adiabatic compressibility at infinite dilution, relative association, etc. The data has further been investigated in terms of relative viscosity and B- coefficient of Jones – Dole equation.
