DI METHYL FORMAMIDE (DMF) – C3H7NO
Dimethylformamide (DMF) is manufactured through a process known as carbonylation, which involves the reaction of monomethylamine (MMA) with carbon monoxide (CO) in the presence of a metal catalyst. The reaction occurs according to the following equation:
MMA + CO → DMF + H2O
The reaction is typically carried out in a reactor at high pressure and high temperature, with a metal catalyst such as nickel or rhodium. The reaction mixture is then cooled, and the resulting DMF is separated from the catalyst and other by-products by distillation.
Odor: characteristic odor
Molecular weight: 73.09 g/mol
Boiling point: 153-154 °C
Freezing point: -63 °C
Density: 0.93 g/mL
Viscosity: 2.5 cP (at 20°C)
Refractive index: 1.4411 (at 20°C)
- DMF is soluble in water, alcohols, and many organic solvents.
- DMF is a highly polar solvent, making it useful for dissolving polar substances such as inorganic salts and certain organic compounds and used in various industries like pharmaceutical, acrylic fibres, petrochemical, pesticides etc.
- DMF can react with strong acids and strong bases to form salts, but it is relatively stable towards most other reagents.
- Acid-Base Properties: DMF is a weak base and can react with strong acids to form salts.
- DMF is an important solvent in the petrochemical industry due to its versatility, high solvency power, and ability to enhance processing performance.
- Dimethylformamide (DMF) is a solvent widely used in the pharmaceutical industry for the production of a wide range of drug substances and intermediates.
- Its ability to dissolve a wide range of organic compounds and its low volatility, makes DMF a suitable for use in high-temperature reactions
PRODUCTION OF ACRYLIC FIBERS:
- DMF is used as a solvent in the polymer industry to produce polyacrylonitrile (PAN), a precursor to carbon fibre. PAN fibres are made by spinning a PAN solution in DMF, which is then treated at high temperatures to form the final carbon fibre product.
- DMF is used as a solvent in the production of acrylic fibres
PRINTING & DYEING :
- DMF is used in printing as a solvent for printing inks as well as a dye carrier. It aids in the even distribution of the dye on the substrate, and its high solubility enables the production of high-quality prints with sharp images and vibrant colours.
USES IN PESTICIDES:
- As a solvent, DMF aids in the dissolution of active ingredients in pesticide formulations
- It is used as a solvent for synthetic fibers, especially polyacrylonitrile, which is the precursor to carbon fiber.
- DMF is also used in the production of polyurethane foam and as a blowing agent for polymer foam production, both of which are commonly used in the textile industry for cushioning and insulation.
- When handling DMF, it is important to wear appropriate personal protective equipment such as gloves, safety goggles, and a respirator or face mask.
- DMF has a strong odor, and inhaling its vapors can cause health effects such as headache, dizziness, and nausea. It is important to work in a well-ventilated area or use local exhaust ventilation to minimize exposure to the vapor.
- DMF should be stored in a cool, well-ventilated area, away from sources of heat and ignition. It should be kept in a tightly sealed container to prevent evaporation and potential exposure to the vapor.
- In case of a spill or leak, it is important to contain the spill and prevent it from spreading. DMF can be slippery, so it is important to wear slip-resistant shoes.
- DMF is flammable, and it can ignite easily. It should be kept away from heat sources and open flames. In case of a fire, use water, foam, or a dry chemical extinguisher to put out the fire.
- DMF should be disposed of properly in accordance with local, state, and federal regulations. Contact your local waste management facility for information on how to properly dispose of DMF.
There are no reviews yet.