cupride

plural cuprides

1. A compound that contains copper in a +1 oxidation state.

   The crystals shown, the writer believes to be iron cupride, having the formula Fe₂Cu₃.

   1910 April, S.S. Knight, “Segregation in Steel Castings”, in Foundry, volume 36, number 2, page 77

   2 more examples

   In the cupride of ammonium ( if we may so call the solvent here first spoken of ) we seem to have the solvent of silk which we lately desiderated in our remarks on the insulation of submarine telegraph wires.

   1859 July 8, “A Remarkable Solvent”, in The Engineer, volume 8, page 26

   The alloys known are (i) Na-Pd alloy, and Li-Pd alloy; (ii) Cu-Pd alloy–which is ductile and white (20% Pd); perhaps palladium cupride, PdCu, is formed; (iii) Ag-Pd alloy (50% Pd) is harder than silver and softer than iron; (iv) Au-Pd alloys; with 50% gold, the alloy is grey, as hard as bar-iron and less ductile than gold or palladium; […]

   2013, Prakash Satya, Advanced Chemistry of Rare Elements, page 598