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Eastman Dimethylformamide (DMF)
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Producer: 
Eastman
Dimethylformamide (DMF) is a clear, colorless, hygroscopic liquid with a slight amine odor. The solvent properties of DMF are particularly attractive because of the high dielectric constant, the aprotic nature of the solvent, its wide liquid range and low volatility. It is frequently used for chemical reactions and other applications, which require a high solvency power. The product is known as a universal solvent. The high solubility of polyacrylonitrile in DMF, together with the good miscibility of DMF in water makes DMF the preferred solvent for the production of acrylic fibers. Also the spinning of polyurethane based elastomers is performed from DMF based solutions. Another significant application is the use of DMF as a solvent for polyurethane-based coatings on leather and artificial leather fabrics. Polymers like polyvinylchloride, vinylchloride- vinylacetate copolymers and some polyamides are also readily dissolved in DMF. DMF is also used in epoxy based formulations. The pharmaceutical industry uses DMF as a reaction and crystallization solvent because of its exceptional solvency parameters. In the petrochemical industry DMF is used for the purification of acetylene from ethylene and butadiene from C4 streams. Also for the separation of aromatics, which can be easily dissolved by DMF from aliphatic hydrocarbons. Those aliphatics are used in lube oils. Due to the high solubility of SO2 in DMF, exhaust combustion streams from high sulfur containing fuels can be purified with CO2 being recovered. Inorganic and organic based residual fluxes are highly soluble in DMF; therefore this solvent is used as a cleaner, for instance to clean hot-dip tinned parts. DMF is also used as industrial paint stripper. This high solubility of inorganic substances also leads to the application of DMF in the production of high voltage capacitors. DMF is also used as carrier for inks and dyes in various printing and fiber-dying applications. DMF is widely used as a solvent, reagent and catalyst in the synthetic organic chemistry.

Eastman Dimethylformamide (DMF)

Producer: 
Eastman
Dimethylformamide (DMF) is a clear, colorless, hygroscopic liquid with a slight amine odor. The solvent properties of DMF are particularly attractive because of the high dielectric constant, the aprotic nature of the solvent, its wide liquid range and low volatility. It is frequently used for chemical reactions and other applications, which require a high solvency power. The product is known as a universal solvent. The high solubility of polyacrylonitrile in DMF, together with the good miscibility of DMF in water makes DMF the preferred solvent for the production of acrylic fibers. Also the spinning of polyurethane based elastomers is performed from DMF based solutions. Another significant application is the use of DMF as a solvent for polyurethane-based coatings on leather and artificial leather fabrics. Polymers like polyvinylchloride, vinylchloride- vinylacetate copolymers and some polyamides are also readily dissolved in DMF. DMF is also used in epoxy based formulations. The pharmaceutical industry uses DMF as a reaction and crystallization solvent because of its exceptional solvency parameters. In the petrochemical industry DMF is used for the purification of acetylene from ethylene and butadiene from C4 streams. Also for the separation of aromatics, which can be easily dissolved by DMF from aliphatic hydrocarbons. Those aliphatics are used in lube oils. Due to the high solubility of SO2 in DMF, exhaust combustion streams from high sulfur containing fuels can be purified with CO2 being recovered. Inorganic and organic based residual fluxes are highly soluble in DMF; therefore this solvent is used as a cleaner, for instance to clean hot-dip tinned parts. DMF is also used as industrial paint stripper. This high solubility of inorganic substances also leads to the application of DMF in the production of high voltage capacitors. DMF is also used as carrier for inks and dyes in various printing and fiber-dying applications. DMF is widely used as a solvent, reagent and catalyst in the synthetic organic chemistry.
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Applications & Uses

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Recommended Uses
  • Agricultural chemical processing
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  • HTF - pharmaceutical processing
  • Oil or gas processing
  • Polymer processing
  • Process solvents
  • Refining
  • Textile

Properties

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Physical Properties
ValueUnitsTest Method / Conditions
Boiling Point152-153°C
Freezing Point-61.0°C
Typical Properties
ValueUnitsTest Method / Conditions
Molecular FormulaC3H7NO
Molecular Weight73.09g/mol
Critical Pressure44 200hPa
Critical Temperature374.0°C
Critical Volume3.65m3/kg
Density (at 25°C)0.949g/cm3
Density (50°C)0.921g/cm3
Dissociation constant, pKa (20°C)-0.3
Flash Point - Closed Cup57.5°C
Free energy of formation (25°C)239.0kJ/mol
Hansen solubility parameters (25°C) Dispersion17.4(MPa)½
Hansen solubility parameters (25°C) Hydrogen Bonding11.3(MPa)½
Hansen solubility parameters (25°C) Polar13.7(MPa)½
Hansen solubility parameters (25°C) Total24.8(MPa)½
Partition Coefficient (n-octanol/waterlogPow)-0.85
Refractive Index (25°C)1.4278
Surface Tension (25°C)36.42mN/m
Vapor Density (air = 1)2.52
Vapor pressure at 20°C3.77hPa
Vapor pressure at 25°C4.8hPa
Vapor Pressure (60°C)34.6hPa
Viscosity (25°C)0.802mPa·s
Water solubility200.0g/L
Electrical Properties
ValueUnitsTest Method / Conditions
Dielectric Constant 10 kHz (25°C)36.7
Dipole moment (20°C)3.81D (debye)
Combustion Properties
ValueUnitsTest Method / Conditions
Auto Ignition Temperature445.0°C
Heat Capacity Gas (127°C, 101.3 kPa)1.61kJ/kg·K
Heat Capacity Liquid (25°C)2.03kJ/kg·K
Heat of Vaporization (140°C)38.3kJ/mol
Heat of Vaporization (25°C)47.6kJ/mol
Appearance
Colorless liquid

Documents (3)

Name
Type
Dimethylformamide (DMF) Sales Specifications Sheet
Other
Active, excipient, and intermediate ingredients for pharmaceuticals
Other
Eastman ingredients for pharmaceuticals
Other