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Xanthate. Sodium salt of ethyl xanthate ( sodium ethylxanthate or sodium O -ethyl dithiocarbonate) Structure of a xanthate ester. Cellulose xanthate (orange) 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]
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.
15 de jul. de 2019 · Characteristics of Sodium xanthate. Suppliers of Sodium xanthate. Download SDS (editable Word file) and other types SDS | Offered by XiXisys.com. SAFETY DATA SHEETS. According to the UN GHS revision 8. Version: 1.0. Creation Date: July 15, 2019. Revision Date: July 15, 2019. SECTION 1: Identification. 1.1 GHS Product identifier.
The most important group of xanthates are the sodium salts produced from cellulose; these materials are processed to form the synthetic fibre rayon or the transparent film cellophane, then reconverted to cellulose. The xanthates of some low-molecular-weight alcohols are used as flotation agents for the concentration of ores.
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.)
1 de ene. de 2019 · CX is an ester of dithiocarbonic acid (xanthogenic acid), which is an inorganic acid, exists only in the forms of sodium salt of CX. Overall mechanism of xanthation reaction is complicated due to the presence of many side reactions. The desired reaction is.
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.
