xanthate

[Eng.xanth(ic); -ate.] Chem. A salt of xanthic acid. xanthate of pota ium, s. Chem.: C3H5OKS2. Obtained by adding carbonic of ethyl chloride on xanthate of pota ium. It is insoluble in water, soluble in all proportions in alcohol and ether, and boils at 210°.