| Melting point |
-117 °C (lit.) |
| Boiling point |
3-4 °C (lit.) |
| Density |
0.63 g/mL at 20 °C (lit.) |
| vapor density |
2.09 (vs air) |
| vapor pressure |
430 mm Hg ( 25 °C) |
| refractive index |
n20/D 1.357 |
| FEMA |
3241 | TRIMETHYLAMINE |
| Flash point |
38 °F |
| storage temp. |
Store at +5°C to +30°C. |
| solubility |
very soluble in water, slightly soluble in alcohol, ether, benzene, toluene, xylene, ethylbenzene, chloroform maximum allowable concentration: TLV 10 p.p.m. (24 mg/m3) and STEL of 15 p.p.m. (36 mg/m3) (ACGIH 1986) |
| form |
Liquid |
| pka |
pKb (25°): 4.13 |
| color |
Colorless |
| PH |
a strong base (pH 9.8) |
| Odor |
smelling like rotting fish, rotting eggs, garbage, or urine. |
| Odor Threshold |
0.000032ppm |
| explosive limit |
11.6% |
| Odor Type |
fishy |
| biological source |
synthetic |
| Water Solubility |
Soluble In Water, 8.9e+005 mg/L. |
| FreezingPoint |
-117.1℃ |
| Thermal Conductivity |
0.156 W/(m·K) at 25 ℃ |
| Sensitive |
Hygroscopic |
| Merck |
14,9710 |
| JECFA Number |
1610 |
| BRN |
956566 |
| Henry's Law Constant |
9.9×10-2 mol/(m3Pa) at 25℃, Burkholder et al. (2019) |
| Dielectric constant |
2.9（4℃） |
| Exposure limits |
ACGIH: TWA 50 ppm; STEL 100 ppm (Skin)
OSHA: TWA 200 ppm(590 mg/m3)
NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3) |
| Stability |
Stable. Incompatible with a wide variety of materials, including bases, acids, oxidizing agents, brass, zinc, magnesium, aluminium, mercury, mercury oxides, acid chlorides, acid anhydrides. Hygroscopic. Highly flammable. Readily forms explosive mixtures with air. |
| InChI |
1S/C3H9N/c1-4(2)3/h1-3H3 |
| InChIKey |
GETQZCLCWQTVFV-UHFFFAOYSA-N |
| SMILES |
CN(C)C |
| LogP |
0.06 |
| CAS DataBase Reference |
75-50-3(CAS DataBase Reference) |
| EPA Substance Registry System |
Trimethylamine (75-50-3) |
