Direct-hand DMF

Chinese name English name dimethylformamide N, N- conventional solvent DMF dimethylformamide alias traits use a transparent liquid CAS68-1 chemical reaction in dimethylformamide (DMF) is a transparent liquid, and miscible with water and most organic solvents. It is a common solvent for the chemical reaction. Pure dimethylformamide is odorless, but technical grade or deterioration of dimethylformamide is fishy, ??it contains dimethyl amine impurities. Because it is the name of the source-carboxamide (amide acid) dimethyl-substituted, methyl and two are located on the N (nitrogen) atoms. Dimethylformamide is a high boiling point polar (hydrophilic) aprotic solvent, can promote the reaction conducted SN2 mechanism. Dimethylformamide is the use of formic acid and dimethylamine manufactured. Dimethylformamide at a strong base such as sodium hydroxide or strong acid such as hydrochloric acid or sulfuric acid is unstable (especially at high temperatures), and hydrolyzed to formic acid and dimethylamine dimethylformamide both a highly versatile chemical raw materials, but also a very versatile excellent solvent. Dimethylformamide to a variety of polymers such as polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, etc. are a good solvent can be used polyacrylonitrile fibers, synthetic wet spinning, synthetic polyurethane; plastic film is used; also can be used to remove paint paint remover; it can dissolve some low solubility pigment, the pigment with the characteristics of the dye. Dimethylformamide for aromatics extraction and for the separation and recovery of butadiene from four carbon fraction and separating and recovering isoprene from the C5 fraction, also be used as an effective agent for the separation of non-hydrocarbon components from paraffin . It solubility of isophthalic acid and terephthalic acid with good selectivity: the solubility of isophthalic acid in dimethyl formamide than terephthalic acid, solvent extraction or acid portion formamide crystals can separate the two. In the petrochemical industry, it can be used as dimethylformamide gas absorbent for the separation and purification of gas. In Organic Reactions, dimethylformamide reaction solvent is not only widely used, is an important intermediate in organic synthesis. Pesticide industry used to produce chlordimeform; pharmaceutical industry can be used to synthesize iodine pyrimidine amine, doxycycline, cortisone, vitamin B6, idoxuridine, Nao drive the net, pyrantel, N- formyl-dissolved sarcoma hormone, anti- Tumor acid, methoxy aromatic mustard, nitrogen mustard Bian, cyclohexyl nitrosourea, furosemide fluorouracil, tranexamic acid, double points dexamethasone, megestrol acetate, gall VITA, chlorpheniramine and the like. Dimethylformamide having hydrogenation, dehydrogenation, dehydration and dehydrohalogenation reactions in catalytic reaction temperature is lowered, improve product purity. Packaging Tongcao aftermarket car may have quality problems unconditional return.