product
Producer:
Eastman Dimethylacetamide (DMAc) is a colorless, high boiling, polar, hygroscopic liquid. DMAC is a good solvent for a wide range of organic and inorganic compounds and it is miscible with water, ethers, esters, ketones and aromatics compounds. It is used in the production of polyacrylonitrile and polyurethane based fibers, films and coatings. The polar nature of DMAC enables it to act as a combined solvent and reaction catalyst in many reactions producing high yields and pure product in short time periods. DMAC is a dipolar aprotic solvent used for many organic reactions and industrial applications. It is a versatile solvent due to its high boiling point and good thermal and chemical stability. 1. Acrylic fibres DMAC is applied as solvent in wet spinning processes for the production of acrylic fibres. 2. Elasthane fibres In the production of polyurethane-based elasthane fibres, DMAC is the solvent of choice given its evaporation speed, whether it is used in wet or dry spinning processes. 3. Pharmaceuticals DMAC can be used both as a solvent and as a reagent in the production of various pharmaceuticals. In the production of novel x-ray contrast media, DMAC is used as a solvent. Cephalosporins, which are among one of the leading classes of antibiotics, are partly produced from derivatives of 7-ADCA (7-aminodeacetoxy-cephalosporanic acid). DMAC is used in the manufacturing process. 4. Various polymers DMAC is a good solvent for polyimide resins, both in coating and film production. It is also the ideal solvent for the production of dialyser membranes, based on polysulfones. A mixture of DMAC and lithium chloride is a useful solvent for cellulose fibres in several applications.
Eastman Dimethylacetamide
Producer:
Eastman Dimethylacetamide (DMAc) is a colorless, high boiling, polar, hygroscopic liquid. DMAC is a good solvent for a wide range of organic and inorganic compounds and it is miscible with water, ethers, esters, ketones and aromatics compounds. It is used in the production of polyacrylonitrile and polyurethane based fibers, films and coatings. The polar nature of DMAC enables it to act as a combined solvent and reaction catalyst in many reactions producing high yields and pure product in short time periods. DMAC is a dipolar aprotic solvent used for many organic reactions and industrial applications. It is a versatile solvent due to its high boiling point and good thermal and chemical stability. 1. Acrylic fibres DMAC is applied as solvent in wet spinning processes for the production of acrylic fibres. 2. Elasthane fibres In the production of polyurethane-based elasthane fibres, DMAC is the solvent of choice given its evaporation speed, whether it is used in wet or dry spinning processes. 3. Pharmaceuticals DMAC can be used both as a solvent and as a reagent in the production of various pharmaceuticals. In the production of novel x-ray contrast media, DMAC is used as a solvent. Cephalosporins, which are among one of the leading classes of antibiotics, are partly produced from derivatives of 7-ADCA (7-aminodeacetoxy-cephalosporanic acid). DMAC is used in the manufacturing process. 4. Various polymers DMAC is a good solvent for polyimide resins, both in coating and film production. It is also the ideal solvent for the production of dialyser membranes, based on polysulfones. A mixture of DMAC and lithium chloride is a useful solvent for cellulose fibres in several applications.
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Applications & Uses
Recommended Uses
- Fibers
- Process solvents
Properties
Physical Properties
Value | Units | Test Method / Conditions | |
Boiling Point | 166.0 | °C | |
Freezing Point | -20.0 | °C |
Chemical Properties
Value | Units | Test Method / Conditions | |
Hydrolysis(Acids) | CH3CON(CH3)2 + H2O + HCI -> CH3COOH + (CH3)2NH.HCI | ||
Saponification(Bases) | CH3CON(CH3)2 + NaOH -> CH3COONa + (CH3)2NH | ||
Alcoholysis(Ions) | CH3CON(CH3)2 + ROH -> CH3COOR + (CH3)2NH |
Typical Properties
Value | Units | Test Method / Conditions | |
Molecular Formula | C4H9NO | ||
Molecular Weight | 87.12 | g/mol | |
Density at 20 C | 0.942 | g/cm3 | |
Density (40 °C) | 0.923 | g/cm3 | |
Dissociation constant, pKa (25°C) | -0.19 | ||
Evaporation Rate | 172.0 | ||
Flash Point - Closed Cup | 64.0 | °C | |
Free energy of formation (25°C) | 288.0 | kJ/mol | |
Hansen solubility parameters (25°C) Dispersion | 7.87 | (MPa)½ | |
Hansen solubility parameters (25°C) Hydrogen Bonding | 10.2 | (MPa)½ | |
Hansen solubility parameters (25°C) Polar | 11.5 | (MPa)½ | |
Hansen solubility parameters (25°C) Total | 22.7 | (MPa)½ | |
Partition Coefficient (n-octanol/waterlogPow) | -0.77 | ||
pH (200 g/l) | 44016.0 | ||
Refractive Index | 1.438 | ||
Surface Tension (at 20°C) | 33.8 | mN/m | |
Surface Tension (40°C) | 30.9 | mN/m | |
Surface Tension (60°C) | 28.3 | mN/m | |
Vapor Density (air = 1) | 3.02 | ||
Vapor pressure at 20°C | 1.78 | hPa | |
Vapor Pressure (21.7°C) | 2.0 | hPa | |
Vapor Pressure (40°C) | 6.6 | hPa | |
Vapor Pressure (60°C) | 20.16 | hPa | |
Viscosity (20°C) | 1.02 | mPa·s | |
Viscosity (25°C) | 0.92 | mPa·s | |
Viscosity (40°C) | 0.78 | mPa·s | |
Viscosity (60°C) | 0.62 | mPa·s | |
Viscosity (at 25°C, 15w% solution)Acryloid®(a) A-21 | 23.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Acryloid®(a) A-107 | 23.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Acryloid®(a) A-72 | 20.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Lucite®(b) 44 | 26.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Lucite®(b) 45 | 38.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Lucite®(b) 46 | 30.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Epon®(c) 1001 | 5.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Epon®(c) 1002 | 6.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Epon®(c) 1004 | 7.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Epon®(c) 1007 | 10.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Half sec butyrate | 555.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)EAB-500-1(d) | 950.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)EAS-171-2(d) | 1275.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Uformite®(e) F-222 | 20.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)MM-55 | 15.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)VYHH(f) | 52.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)VAGH(f) | 53.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)VMCH(f) | 48.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Geon® 121(g) | 230.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)Geon® 101(g) | 3500.0 | mPa.s | |
Viscosity (at 25°C, 15w% solution)HB-14 Nitrocellulose | 18.0 | mPa.s | |
Iso-octane | 33.0 | g / 100 g DMAc | |
Di-isobutylene | Completely miscible | ||
N-Hexane | Completely miscible | ||
N-heptane | 31.0 | g / 100 g DMAc | |
Cyclohexane | Completely miscible | ||
Cyclohexene | Completely miscible | ||
Kerosene | 16.0 | g / 100 g DMAc |
Electrical Properties
Value | Units | Test Method / Conditions | |
Dielectric Constant 10 kHz (25°C) | 37.8 | ||
Dipole moment | 3.7 | D (debye) | |
Thermal Conductivity (20°C) | 169.2 | mW/m.K | |
Thermal Conductivity (40°C) | 161.2 | mW/m.K | |
Thermal Conductivity (60°C) | 153.3 | mW/m.K |
Combustion Properties
Value | Units | Test Method / Conditions | |
Auto Ignition Temperature | 345.0 | °C | |
Heat of Combustion | 25.45 | kJ/mol | |
Heat of Vaporization (25°C) | 53.2 | kJ/mol | |
Specific Heat (20°C) | 0.175 | kJ/mol.K |
Packaging & Availability
Regional availability
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