Dimethylformamide

the dimethylamide of formic acid, HCON(CH₃)₂; a colorless liquid with a slight, characteristic odor. Melting point, −61°C; boiling point, 153°C; density, 0.9445 g/cm³ (25°C); index of refraction n²⁵_D, 1.4269. It is miscible with water, acetone, and benzene, and it readily dissolves polar organic substances, some salts, acetylene (31.4 parts per part of dimethylformamide at 25°C), and many polymers.

In industry, dimethylformamide is made from methyl formate, HCOOCH₃, and dimethylamine, HN(CH₃)₂, or from dimethylamine and CO. It is used as a solvent in forming polyacrylonitrile fiber (Nitron and Orion); in separating acetylene from gas mixtures; as a dye solvent in dyeing leather, paper, wood, and viscose fiber; and in a number of chemical processes.

单词	dimethylformamide
释义	dimethylformamide dimethylformamide (daɪˌmiːθaɪlˈfɔːməˌmaɪd; -ˌmɛθl-) n (Elements & Compounds) a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO. Abbreviation: DMF Dimethylformamide Dimethylformamide the dimethylamide of formic acid, HCON(CH₃)₂; a colorless liquid with a slight, characteristic odor. Melting point, −61°C; boiling point, 153°C; density, 0.9445 g/cm³ (25°C); index of refraction n²⁵_D, 1.4269. It is miscible with water, acetone, and benzene, and it readily dissolves polar organic substances, some salts, acetylene (31.4 parts per part of dimethylformamide at 25°C), and many polymers. In industry, dimethylformamide is made from methyl formate, HCOOCH₃, and dimethylamine, HN(CH₃)₂, or from dimethylamine and CO. It is used as a solvent in forming polyacrylonitrile fiber (Nitron and Orion); in separating acetylene from gas mixtures; as a dye solvent in dyeing leather, paper, wood, and viscose fiber; and in a number of chemical processes. MedicalSeedmfAcronymsSeeDMF
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