Investigation of the interaction conditions of As2S5 and CuCl2 compounds in water and ethylene glycol medium

The article presents the results of the interaction conditions of CuCl₂ and As₂S₅ in ethylene glycol and aquatic medium. Besides, the results of the obtained samples' physicochemical properties are given by X-ray diffraction (XRD), differential thermogravimetric (DTG), thermogravimetric (TG), elemental, and scanning electron microscope (SEM) methods. It was found that when ethylene glycol and water are used as a solvent and CuCl₂ and As₂S₅ as the initial components, Cu₃AsS₄ is obtained at a temperature of 323-353 K. According to the results of DTA analysis, it was found that the melting point of obtained samples was 964.4 K contrary to the reactions carried out to obtain Cu₃(AsS₄)₂ compounds both in ethylene glycol and water medium. Elemental analysis of the compounds was carried out, energy-dispersion spectrum, mass, and atomic ratios of copper, arsenic, and sulfur were determined, and the stoichiometric composition of Cu₃AsS₄ was determined. Furthermore, X-ray analysis of the obtained samples confirmed that peaks on the graphs correspond to the standard intensity maxima of the Cu₃AsS₄ compound.