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A xanthate is a salt or ester of a xanthic acid. The formula of the salt of xanthic acid is [R−O−CS2]−M+ (where R is organyl group and M is usually Na or K ). [1] . Xanthate also refers to the anion [R−O−CS2]−.
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.
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.
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.)
14 de jun. de 2023 · According to the metal element connected to the thioether group, xanthates are classified into sodium xanthate and potassium xanthate. Among the xanthates used in industry, when the number of carbon atom in R is less than four, they are called low-grade xanthate, and when the number is four or more, they are called higher xanthate.
Sodium ethyl xanthate. Molecular Formula CHNaOS. Average mass 144.191 Da. Monoisotopic mass 143.967957 Da. ChemSpider ID 8493. - Charge. More details: Names. Properties. Searches. Spectra. Vendors. Articles. More. Names and Synonyms. Validated by Experts, Validated by Users, Non-Validated, Removed by Users. 140-90-9 [RN] 205-440-9 [EINECS]
15 de mar. de 2021 · It has been demonstrated that short-chain xanthates such as sodium ethyl xanthate require a much higher concentration to achieve the performance obtained with long-chain xanthates at acidic pH.
