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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.
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] −.
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.
Los xantatos son las sales y ésteres del ácido xántico, R OC (=S) SH u O-ésteres del ácido ditiocarbónico, donde R es cualquier radical orgánico. Muchos xantatos tienen coloración amarillenta, de donde se deriva su nombre, que proviene del griego ξανθός [xantʰós] xanthous, que significa amarillo, y del náhuatl xanto, que significa santo.
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.
Once formed, the alkoxide ion adds to carbon disulfide, and the resulting anion is alkylated by methyl iodide. This procedure, which is the standard one for xanthate synthesis, is summarized in Scheme 1.
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: $$ {\displaystyle \begin {array} {c}\mathrm {S}\\ {}\parallel \\ {}\mathrm {R}\hbox {---} \mathrm {O}\hbox {---} \mathrm {C}\hbox {---} \mathrm {S}\hbox {---} \mathrm {M}\end {array}} $$.
