Product name: Dimethyl acetamide, DMAC
Molecular Formula: C4H9NO
Dimethylacetamide, abbreviated as DMAC, is a solvent commonly used as a nonproton polar solvent. Dimethyl acetamide is a colorless transparent liquid, which can be mixed with water, alcohol, ether and other organic solvents, and is a polar solvent. Dimethylacetamide has good thermal stability and can be refined by distillation even if it is stable at boiling point and does not decompose. It is stable in aqueous solution, but hydrolysis will be promoted in the presence of acid and alkali. Due to the introduction of ethyl into the molecular structure, the boiling point of dimethylacetamide is higher than that of dimethylformamide (DMF) by more than 10 ℃ (the boiling point of dimethylformamide is 153 ℃), so it has better thermal and chemical stability than dimethylformamide. In organic synthesis, dimethylacetamide is an excellent catalyst, which can accelerate the reaction of cyclization, halogenation, cyanidation, alkylation and dehydrogenation, and improve the yield of main products.
It is mainly used as solvent in organic and pharmaceutical industry, plastic industry for polyamide resin and gum, chemical fiber industry for acrylonitrile spinning solvent, chemical production for catalyst, electrolytic solvent. In coatings industry, it is mainly used as the preparation of paint strippers and a variety of crystalline solvent adducts and complexes, and in analytical chemistry for chemical reagents.
1. DMAC is mainly used as solvent for synthetic fibers (acrylonitrile) and polyurethane spinning and polyamide resin synthesis. It is also used as extractive distillation solvent for separating phenylethylene dilute from C8 fraction. It is widely used in polymer films, coatings and pharmaceuticals. At present, it is widely applied in antibiotics and pesticides synthesis in the field of medicine and pesticides.
2. It is also used as catalysts for chemical reactions, electrolytic solvents, paint strippers and various crystalline solvent adducts and complexes.
3. It is usually used as solvent, paint remover, catalyst and organic synthesis
Acidity(acetic acid) %
It should be sealed and stored in a cool and dry place. Avoid water absorption and sunshine. It should not be close to fire. It should be handled lightly.
Wear mask and gloves,avoid contact with eyes and skin.
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