BEST QUALITY/N,N-Dimethylformamide/DMF

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Dimethylformamide(CAS 68-12-2) is primarily used as a low volatile solvent. Dimethylformamide is used in the manufacture of acrylic fibers and plastics. In the pharmaceutical industry, it is also used in the manufacture of pesticides, following agent, artificial leather, fiber, film and surface coating. Dimethylformamide is a reagent for the synthesis of Bouveault aldehydes and vilsmeier-Haack reactions (another useful aldehyde synthesis reaction). In the NMR spectrum, the proton on the methyl group of the dimethylformamide forms two single peaks because the carbonyl carbon-nitrogen bond rotates at a very slow rate over the TIME scale of the NMR. The carbon - nitrogen bond of carbonyl group is greater than one, while the carbon - oxygen bond of amide is less than two. The Chemicalbook C=O band in the infrared spectrum of amides is usually less than 1700cm-1 because its C=O bond is weakened by the density of electrons supplied from nitrogen to oxygen. Dimethylformamide penetrates and expands most plastics and is often used as an ingredient in paint removers. Dimethylformamide is also called a "universal solvent", but it also has its limitations. High boiling point, 154℃, as a solvent of many polymer materials is more appropriate, in organic synthesis should be carefully selected, often encounter solvent removal is not clean. In addition, it can be mixed with water, simple solvent recovery method is difficult to dehydration, no matter the cost, can be washed off with water, in the small test should consider the feasibility of large-scale production. Need to calculate the cost and waste water treatment plan.