DEPENDENCE OF DENSITY OF JOINT AQUEOUS SOLUTIONS OF AMMONIA, AMMONIUM CHLORIDE, AMMINES OF ZINC AND COPPER ON THEIR COMPOSITION

The dependence of the pressure of joint aqueous solutions of ammonia, ammonium chloride, ammines of zinc and copper on their component concentrations was studied by pycnometric method. The equation wich allow calculating the density of solutions mentioned above using known molar concentrations of components was obtained. The error of calculation on equation is not more than 3%. The data obtained can be used at the design of pilot devices for the extraction of zinc and copper by ammonia-ammonium solutions from industrial waste.