Dimethylformamide


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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 n25D, 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.

References in periodicals archive ?
Photodynamic activity of pyropheophorbide methyl ester and pyropheophorbide a in dimethylformamide solution.
Several chemicals, including dimethylformamide (DMF), dimethylacetamide (DMAc), and pyridine, were detected in some of the samples collected from a walk-through before and after the simulated process (Table 1).
1] NMR) with chloroform (60 to 70 mg/mL) as solvent, and by gel permeation chromatography with dimethylformamide (0.
Another method is the use of highly reactive commodity chemicals such as hydrazine hydrate or dimethylformamide (DMF) [[([CH.
Dimethylformamide and acetone mixture with 3:2 (wt/wt) was used as solvent mixture for dissolving PVDF.
The solvent may be dimethylformamide, methanol, water, dimethyl sulfoxide, or ortho dichlorobenzene.
The complex will also produce aminoethanols, aminomethyls, dimethylformamide, choline chloride, dimethylethanol, dimethylethanolamine, ethoxylates, phenol, cumene and polycarbonate which will be produced for the first time in the region.
When complete, the complex will produce 6 million tonnes of petrochemicals, including aminoethanols, dimethylformamide, dimethylethanol, dimethylethanolamine, ethoxylates, phenol, cumene and polycarbonates -- it is the first time these speciality chemicals will be produced in the kingdom.
The originally proposed procedure with p-DMAB demands 60% by volume of dimethylformamide solution as p-DMAB solvent, 25% sodium hydroxide solution and 45 min reaction time at 37[degrees] reaction temperature.
After incubation, the reaction was terminated by the addition of 200 [micro]l lysis buffer (10%, w/v, sodium dodecyl sulphate and 45% dimethylformamide, adjusted to pH 4.