Ultrasonic studies on sodium thiosulphate and ammonium thiosulphate in water and water+acetone mixtures

摘要

Densities at 298.15,303.15,308.15 and 313.15 K and ultrasonic velocities at 303.15,308.15 and 313.15 K are measured for the solutions of sodium thiosulphate[Na_2S_2O_3] and ammonium thiosulphate [(NH_4),S_2O_3] in water and water+acetone (5,10 and 20 wt %) mixtures with the objective of evaluating the apparent molar properties and acoustic parameters.The results are discussed in terms of ion-ion and ion-solvent interactions and structural effects of the solvents in solution.