Hexamethylcyclotrisiloxane suppliers is a kind of appearance with a white or pale pink crystalline powder, it is soluble in ethanol, ethyl ether, benzene, chloroform, petroleum ether, soluble in water about 200, its solution in ferrous salt is red. Today hexamethylcyclotrisiloxane suppliers manufacturer hebi secco chemical company with all of you know hexamethylcyclotrisiloxane suppliers with method and the calculation of chemical data.
It is produced by the reaction of pyridine with ferric chloride. Mixing 70g anhydrous pyridine with 13g anhydrous ferric chloride was heated in a sealed tube at 300℃ for about 35h. After cooling, the reactants solidify into red-black crystals. Open the sealing tube and wash out the red-black solution of the solid with a little hot water. The oily impurity is removed by ether extraction. After neutralization with sodium bicarbonate, excess pyridine is removed by steam heating. And then the mixture into a strong alkaline, steam steamed out of 2, 2 '- hexamethylcyclotrisiloxane suppliers. After acidification, the product is evaporated and concentrated, and then sodium hydroxide is added. The product is extracted with ether, and the ether is removed to obtain crude product. The crude product is recrystallized with B, and the activated carbon is decolorized. In addition, the product can also be prepared by the reaction of α-methylpyridine [109-06-8] with potassium permanganate and purified treatment.
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