Ultrasonic Studies in Aqueous Solutions of Formates, Acetates and Propionates of Sodium and Calcium

Abstract

The ultrasonic absorption and velocity in solutions of formates, acetates and propionates of sodium and calcium with regard to their temperature and concentration variation have been studied over the frequency range 4–26 Mc/s to investigate the associated relaxation processes. It is found that in the case of calcium salts the contribution of chemical relaxation to absorption is comparable to that dud to other causes such as viscosity whereas in the case of sodium salts most of the absorption is due to causes other than relaxation.