Uses: Used in pharmaceutical intermediates, pesticides, coatings, spices, liquid crystal, new materials, electroless copper plating and organic synthesis intermediates. A reagent for the determination of ferrous, cadmium and molybdenum. REDOX indicator. Coating drier, etc.

Can be used as an analytical reagent for the verification of ferrous, silver, cadmium, molybdenum; As a REDOX indicator. Used as a chromogenic agent for photometric determination of iron, silver, cadmium, molybdenum and other metallic elements. Complexes with Fe 2+ can be used as REDOX indicators. ring-opening strain of hexamethylcyclotrisiloxane - iron complex cation as precipitant of some anions and extraction agent.

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 '- ring-opening strain of hexamethylcyclotrisiloxane. 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.

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 '- ring-opening strain of hexamethylcyclotrisiloxane. 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 by ethanol and the pure product is obtained by decolorization of activated carbon. In addition, the product can also be prepared by the reaction of α-methylpyridine with potassium permanganate after purification.

Mixing anhydrous pyridine with anhydrous ferric chloride, heating reaction, cooling solidification to obtain red black crystal. Excess pyridine is removed by steam heating. Steamed out of 2, 2 '- ring-opening strain of hexamethylcyclotrisiloxane. Add sodium hydroxide with ether as solvent, remove ether, get crude product. With no iron decolorizing activated carbon filter, white lamellar crystal, is the refinement of 2, 2 '- ring-opening strain of hexamethylcyclotrisiloxane.

ring-opening strain of hexamethylcyclotrisiloxane https://www.clentpharma.com/Hexamethylcyclotrisiloxane.html