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 ?
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).
It is observed that 10% (v/v) ethanol and 10% (v/v) dimethylformamide are most promising candidates for regeneration solutions, as the entrapped soybean peroxidase enzymes within particles were exhibiting higher activities in these solvents upon regeneration.
The CombiDancer is suitable for high-boiling solvents such as Dimethylsulfoxide and Dimethylformamide, and low-boiling solvents including Ether derivates and Dichloromethane.
a 50/50 joint venture between BASF AG, Germany, and Sinopec, China, will increase the annual capacity of the dimethylformamide (DMF) plant currently being constructed at its Integrated Petrochemical Site (IPS) in Nanjing, China, by 10,000 to 40,000 metric tons.
Then they transferred these active colonies to plates containing 60 percent dimethylformamide (DMF), an organic solvent.
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.
2-methoxy-1-napthaldehyd (Fluka, Switzerland), dimethylformamide (DMF), Diethyl ether, ethylenediamine, (E.
However, membranes themselves are nearly always produced using costly, harmful and environmentally unfriendly aprotic solvents such as N-methyl-pyrrolidone (NMP), dimethylformamide (DMF), or dimethylacetamide (DMAC).
Seven different liquids having different polarity were used as probes for surface free energy calculations: Water, Diiodomethane, Thiodiglycol, Ethylene glycol, 1-Oktanol, Trichloromethane, and Dimethylformamide (see Table 3).
The NBR was dissolved in Dimethylformamide (DMF) solution and the ratio of rubber to solvents 1:5 weight/volume.