Studies on the behaviour of cuprous chloride in hydrochloric acid and potassium chloride solutions. I. Chemical analysis in the aqueous phase

Investigations have been carried out to determine the complex ion formation between cuprous chloride and hydrochloric acid and cuprous chloride and potassium chloride in the aqueous and solid phase. An indirect method to determine the concentration of the components in the solid phase was employed due to the highly oxidisable nature of cuprous ions. Rectangular curves were drawn. In the case of hydrochloric acid, complexes like H2CuCl3 and H3CuCl4 are formed in the liquid phase while H2CuCl3; H3CuCl4 are formed in the solid phase. For potassium chloride, complexes like K3CuCl4 and K2CuCl3 were found to exist in the aqueous phase and KCuCl2 and K2CuCl3 were obtained in the solid phase. The amount of cuprous chloride going into solution with increasing amount of KCl was found to be lesser for HCl under identical conditions. Es werden die Ergebnisse von Untersuchungen uber die Komplexbildung zwischen CuCl und HCl bzw. KCl in Losung und im Bodenkorper mitgeteilt. Zur Konzentrationsbestimmung der Komponenten im Bodenkorper wird eine indirekte Methode benutzt. Im System CuClHCl liegen in Losung die Komplexe H2CuCl3 und H3CuCl4 vor, analoge Komplexe finden sich in Losung im System CuClKCl, wahrend im Bodenkorper KCuCl2 und K2CuCl2 vorliegen.