As - Zn (Arsenic - Zinc)

Condensed Phases

The reciprocal solubility of the elements in the solid solution is very small. Two stable compounds (ZnAs₂ and Zn₃As₂) exist in the system with Zn₃As₂ forming several modifications (α, αʹ and β). At high temperatures and pressures (800-1200°C, 4•10⁹ Pa) another ZnAs compound exists. Several modifications of Zn₃As₂ have been reported [75Cla, 75Pis, 87Cla]. Crystal structure data of zinc arsenides are presented in Table 1 [Mas].