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 ?
Abnormal liver function associated with occupational exposure to dimethylformamide and hepatitis B virus.
Photobleaching-electron density for the molecular structures of pyropheophorbide a and pyropheophorbide methyl ester 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).
NIOSH Alerts on Workplace Hazards: Falls Through Skylights and Roof Openings, Deaths of Farm Workers in Manure Pits, and Exposure to Dimethylformamide CDC's National institute for Occupational Safety and Health (NIOSH) periodically issues alerts on workplace hazards that have caused injury, illness, or death to workers.
Thionyl chloride, p-phenylenediamine, dimethylformamide (DMF), concentrated nitric acid, and diiodomethane were of analytical grade and obtained from Sinopharm Chemical Reagent Co., Ltd., China.
Yang, "Colorimetric detection of Ag ions with graphene oxide in dimethylformamide," New Journal of Chemistry, vol.
These porous materials are formed by combining a metal salt and an organic linker in a solvent such as N,N dimethylformamide, reacting to form a porous metal-organic framework and extracting solvent by flowing supercritical carbon dioxide through the material to remove occluded solvent from the crystals and activate the structure.
The NBR was dissolved in Dimethylformamide (DMF) solution and the ratio of rubber to solvents 1:5 weight/volume.
Stock solution (1.0 x [10.sup.-3] M) was prepared by dissolving zanosar in dimethylformamide (DMF).
Because of the insolubility of the presently prepared complexes in common organic solvents, the spectra of the prepared complexes were run in dimethylformamide. The peaks observed below 350 nm are assumed as due to [pi] [right arrow] [[pi].sup.*], n [right arrow] [[pi].sup.*] and n [right arrow] [[sigma].sup.*] transitions.
Ultrasonic studies on poly methyl metacrylate in dimethylformamide. Journal of Polymer Matter, 12: 177-181.
The graft copolymer, namely sucrose-g-PolyAcrylonitrile, was freed from polyacrylonitrile (PAN) homopolymer, by pouring 0.80 g of the product in 50 mL of dimethylformamide solution.