Product Description of N,N-Dimethylformamide CAS#68-12-2
N,N-Dimethylformamide (C₃H₇NO), commonly known as DMF, is a colorless, transparent liquid with a slight amine-like odor. It is a polar aprotic solvent with high solvency and good chemical stability. DMF is widely used as an industrial solvent and an important intermediate in organic synthesis. It is particularly suitable for dissolving and processing various polymers, resins, and organic compounds.
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Chemical Properties of N,N-Dimethylformamide CAS#68-12-2
| Melting point | -61 °C (lit.) |
| Boiling point | 153 °C (lit.) |
| alpha | 0.94 º |
| density | 0.944 g/mL (lit.) |
| vapor density | 2.5 (vs air) |
| vapor pressure | 2.7 mm Hg ( 20 °C) |
| refractive index | n |
| 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 |
| Relative polarity | 0.386 |
| PH | 7 (200g/l, H2O, 20℃) |
| Odor | Faint, ammonia-like odor detectable at 100 ppm |
| Appearance | colorless liquid |
| explosive limit | 2.2-16%(V) |
| Odor Threshold | 1.8ppm |
| Water Solubility | soluble |
| Thermal Conductivity | 0.184 W/(m·K) at 25 ℃ |
| Specific Heat Capacity | Cp(liquid): 2.06 J/(g·K), at 25℃ |
| 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 |
| Henry's Law Constant | 1.3×102 mol/(m3Pa) at 25℃, Burkholder et al. (2019) |
| Exposure limits | ACGIH:TLV-TWA 5 ppm (15 mg/m3) OSHA:PEL-TWA 10 ppm (30 mg/m3) NIOSH:REL-TWA 10 ppm |
| Dielectric constant | 36.710000000000001 |
| InChI | 1S/C3H7NO/c1-4(2)3-5/h3H,1-2H3 |
| InChIKey | ZMXDDKWLCZADIW-UHFFFAOYSA-N |
| SMILES | [H]C(=O)N(C)C |
| 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) |
| IARC | 2A (Vol. 47, 71, 115) 2018 |
| NIST Chemistry Reference | Formamide, N,N-dimethyl-(68-12-2) |
| EPA Substance Registry System | N,N-Dimethylformamide (68-12-2) |
Safety Information
| Hazard Codes | T |
| Risk Statements | 61-20/21-36 |
| Safety Statements | 53-45 |
| OEB | A |
| OEL | TWA: 10 ppm (30 mg/m3) [skin] |
| RIDADR | UN 2265 |
| WGK Germany | 1 |
| RTECS | LQ2100000 |
| F | 3-10 |
| Autoignition Temperature | 445 °C |
| Hazard Note | Toxic |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29241990 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Inhalation Eye Irrit. 2 Flam. Liq. 3 Repr. 1B |
| 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) |
| IDLH | 500 ppm |
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Product Application of N,N-Dimethylformamide CAS#68-12-2
N,N-Dimethylformamide is widely used as a solvent in the production of polyurethane, acrylic fibers, synthetic leather, coatings, adhesives, and plastics. It is also extensively used in pharmaceuticals, agrochemicals, dyes, and organic synthesis as a reaction and processing solvent.
In the textile industry, DMF is commonly used in the production of acrylic fibers and polyurethane-based synthetic leather, helping dissolve and process polymer materials. It can also be used as a solvent in various industrial formulations due to its excellent solvency and relatively high boiling point.
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