Products Description
maleic-anhydride.html">mamide.html">Dimethylformamide is a flammable, colorless liquid with a characteristic fishy, amine‑like odor at low concentrations. Its odor threshold is 0.47–100 ppm. It has a molecular weight of 73.11, specific gravity of 0.95 (water = 1), boiling point of 153℃, melting point of -61℃, vapor pressure of 3 mmHg at 20℃, flash point of 58℃, and autoignition temperature of 444.5℃. Explosive limits are LEL 2.2% and UEL 15.2% at 100℃. NFPA‑704M rating: Health 2, Flammability 2, Reactivity 0. It is fully soluble in water.
Chemical Properties
| Item | Specification |
| Melting point | -61 °C (lit.) |
| alpha | 0.94 º |
| Boiling point | 153 °C (lit.) |
| density | 0.944 g/mL (lit.) |
| vapor density | 2.5 (vs air) |
| vapor pressure | 2.7 mm Hg (20 °C) |
| refractive index | n20/D 1.430(lit.) |
| Fp | 136 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | water miscible |
| pka | -0.44±0.70(Predicted) |
| form | liquid |
| color | APHA: ≤15 |
| Appearance | colorless liquid |
| PH | 7 (200g/l, H2O, 20℃) |
| Odor | Faint, ammonia-like odor detectable at 100 ppm |
| Relative polarity | 0.386 |
| Odor Threshold | 1.8ppm |
| explosive limit | 2.2-16%(V) |
| Water Solubility | soluble |
| λmax | λ: 270 nm Amax: 1.00 λ: 275 nm Amax: 0.30 λ: 295 nm Amax: 0.10 λ: 310 nm Amax: 0.05 λ: 340-400 nm Amax: 0.01 |
| Sensitive | Hygroscopic |
| Merck | 14,3243 |
| BRN | 605365 |
| Exposure limits | NIOSH REL: TWA 10 ppm (30 mg/m3), IDLH 500 ppm; OSHA PEL: TWA 10 ppm; ACGIH TLV: TWA 10 ppm (adopted). |
| Dielectric constant | 36.71 |
| InChIKey | ZMXDDKWLCZADIW-UHFFFAOYSA-N |
| LogP | -1.010 |
| Surface tension | 35.20mN/m at 298.15K |
| Surface tension | 37.1mN/m at 20°C |
| CAS DataBase Reference | 68-12-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Formamide, N,N-dimethyl-(68-12-2) |
| IARC | 2A (Vol. 47, 71, 115) 2018 |
| EPA Substance Registry System | N,N-Dimethylformamide (68-12-2) |
Safety Information
| Item | Specification |
| Hazard Codes | T |
| Risk Statements | 61-20/21-36 |
| Safety Statements | 53-45 |
| RIDADR | UN 2265 3/PG 3 |
| OEB | A |
| OEL | TWA: 10 ppm (30 mg/m3) [skin] |
| WGK Germany | 1 |
| RTECS | LQ2100000 |
| F | 3-10 |
| Autoignition Temperature | 445 °C |
| Hazard Note | Toxic |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29241990 |
| Hazardous Substances Data | 68-12-2(Hazardous Substances Data) |
| Toxicity | LD50 in mice, rats (ml/kg): 6.8, 7.6 orally; 6.2, 4.7 i.p. (Bartsch) |
| IDLA | 500 ppm |
Product Application
N,N-Dimethylformamide (DMF) is a clear liquid widely used in industry as a solvent, additive, and synthetic intermediate due to its excellent miscibility with water and most organic solvents. It is used to process polymer fibers, films, and surface coatings, enable smooth spinning of acrylic fibers, produce wire enamels, and serve as a crystallization medium in pharmaceutical manufacturing.
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
