Abstract: A new method for the synthesis of Mg₂Cu is presented. The main feature of the method is using a suitable nonaqueous solution of cupric salt, such as CuCl₂ in predried methylcyanide, to react with magnesium filings in an atmosphere of argon. The replaced copper is deposited on the surface of Mg. After heating the alloy at 500-580℃ under an atmosphere of argon for homogeneity, Mg₂Cu is obtained as a dark grey powder. The properties of this chemically synthetic intermetallic compound are essentially inden-tical with those reported in the literature.