Potassium ethyl xanthate Potassium ethyl xanthate Potassium ethyl xanthate (KEX) is an organosulfur compound with the chemical formula CHCHOCSK. It is a pale yellow powder that is used in the mining industry for the separation of ores. Unlike the related sodium ethyl xanthate, the potassium salt exists as an anhydrous salt. Xanthate salts are prepared by the action of alkoxides on carbon disulfide. The alkoxide is often generated in situ from potassium hydroxide: Potassium ethyl xanthate is a pale yellow powder that is stable at high pH but rapidly hydrolyses at pH <9 at 25 °C. Unlike the sodium derivative, potassium xanthate crystallizes
Ethyl carbamate more than 100 animal studies using ethyl carbamate published each year. One advantage of using ethyl carbamate is that it has a very long duration of action, with some adult rats remaining anaesthetised 24 hours after administration of the drug. It also does not depress neuronal activity in the cortex to the same extent as isoflurane. Formerly, crosslinking agents for permanent press textile treatments were synthesized from ethyl carbamate. The widespread presence of ethyl carbamate in alcoholic beverages was discovered during the mid-1980s. To raise public awareness of this issue, the U.S. Center for Science in the Public Interest published,