Acetonitrile Solvent Properties |
CAS 75-05-8
Physical Properties | |
Molecular weight | 41.05 |
Boiling point | 81.60°C |
Vapor pressure | 88.8 Torr at 25°C |
Freezing point | -43.8°C |
Refractive index | 1.3441 at 20°C |
Density | 0.7822 g/mL (6.527 lb/gal) at 20°C |
0.7766 g/mL (6.481 lb/gal) at 25°C | |
Dielectric constant | 37.5 at 20°C |
Dipole moment | 3.44 D at 20°C |
Solvent group | 6 |
Polarity index (P') | 5.8 |
Eluotropic value on alumina | 0.65 |
Eluotropic value on octadecylsilane | 3.1 |
Eluotropic value on silica | 0.52 |
Viscosity | 0.38 cP at 15°C |
Surface tension | 19.10 dyn/cm at 20°C |
Solubility in water | Miscible in all proportions |
Regulatory and Safety Data | |
DOT Hazard Class | 3, Flammable Liquid |
Packing Group | II |
UN Identification Number | UN1648 |
Storage | Store in an area designed for flammable storage, or an approved metal cabinet, away from direct sunlight and sources of heat and ignition. |
EPA applicable waste code(s) | D001, U003 |
Flash Point | 42°F (6°C) by closed cup |
Lower explosive limit | 3.0% |
Upper explosive limit | 16.0% |
Time Weighted Average | 40ppm ACGIH |