Chem. [f. Gr. ξανθός yellow + -IDE.] a. A compound of xanthogen (XANTHOGEN 1). b. A salt of xanthydric (persulphocyanic) acid.
1823. Henry, Elem. Chem. (ed. 9), II. 667. The oxides of common metals (copper, lead, mercury, &c.) decompose it [sc. hydroxanthic acid] by giving up their oxygen to the hydrogen of the acid, and the xanthogene unites with the metal, forming xanthides.
1868. Watts, Dict. Chem., V. 1050. Xanthides, syn. with Persulphocyanates.
