Some of physical properties of BaCl2 dissolves in distilled water had been studied at different concentrations
(0.05%, 0.1%, 0.15%, 0.2%, 0.25% and 0.3%) (gm./ml) before and after adding (0.3)gm of CuCl2 for all
concentrations , the mechanical properties such as ultrasonic velocity had been measured by ultrasonic waves
system at frequency 25 KHz, other mechanical properties had been calculated such as absorption coefficient of
ultrasonic waves, relaxation time, relaxation amplitude, specific acoustic impedance, compressibility and bulk
modules. The results show that all these properties are increasing with the increase of the polymer concentration
except compressibility is decreasing with the increase of the concentration; results show that when adding CuCl2
these properties are increasing except compressibility is decreasing. Results also shows that adding CuCl2 to
BaCl2 enhances the ultrasonic absorption coefficient as a result of high values after addition.
Keywords: BaCl2 solution, CuCl2 solution, mechanical properties, ultrasound technique.