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The formula of a xanthic acid is R−O−C(=S)−S−H, such as ethyl xanthic acid, while the formula of an ester of a xanthic acid is R−O−C(=S)−S−R', where R and R' are organyl groups. The salts of xanthates are also called O -organyl dithioates.
Xanthate, any of a class of organic salts formed by treatment of an alcohol with carbon disulfide in the presence of an alkali. The term is derived from the Greek word xanthos, for “yellow,” in reference to the compound potassium ethyl xanthate (C2H5OCS2K), which gives a yellow precipitate when.
A xanthate es una sal o un éster de un ácido xántico. La fórmula de la sal de ácido xántico es [R-O-CS 2] − M + (donde R es grupo organil y M es generalmente Na o K). Xanthate también se refiere a la anión [R-O-CS 2] −.
Sodium ethyl xanthate (SEX) is an organosulfur compound with the chemical formula CH 3 CH 2 OCS 2 Na. It is a pale yellow powder, which is usually obtained as the dihydrate. Sodium ethyl xanthate is used in the mining industry as a flotation agent. A closely related potassium ethyl xanthate (KEX) is obtained as the anhydrous salt.
The most common method for synthesizing O - [ (alkylthio)thiocarbonyl] esters of carbohydrates (carbohydrate xanthates) begins by forming an alkoxide ion from reaction of sodium hydride with a compound containing an unprotected hydroxyl group. 1 (Imidazole usually is present in the reaction mixture to promote alkoxide ion formation.)
Potassium ethyl xanthate is an organosulfur compound with the chemical formula CH3CH2OCS2K. It is a pale yellow powder that is used in the mining industry for the separation of ores. [Wikipedia]
14 de jun. de 2023 · Xanthate is a flotation collector of sulfide ore. Its chemical name is xanthate or alkyl dithiocarbonate, and its structural formula is: $$ {\displaystyle \begin {array} {c}\mathrm {S}\\ {}\parallel \\ {}\mathrm {R}\hbox {---} \mathrm {O}\hbox {---} \mathrm {C}\hbox {---} \mathrm {S}\hbox {---} \mathrm {M}\end {array}} $$.
