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

## TL;DR

The study explores how CuCl2 and As2S5 interact in water and ethylene glycol to form Cu3AsS4 at specific temperatures.

## Contribution

The paper identifies the formation of Cu3AsS4 under specific solvent and temperature conditions.

## Key findings

- Cu3AsS4 is formed at 323–353 K using ethylene glycol and water as solvents.
- DTA analysis shows a melting point of 964.4 K for the obtained Cu3AsS4 compound.
- X-ray analysis confirms the stoichiometric composition of Cu3AsS4.

## Abstract

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.