| Melting point |
−96 °C(lit.) |
| Boiling point |
152-154 °C(lit.) |
| Density |
0.864 g/mL at 25 °C(lit.) |
| vapor density |
4.1 (vs air) |
| vapor pressure |
8 mm Hg ( 20 °C) |
| refractive index |
n20/D 1.491(lit.) |
| Flash point |
115 °F |
| storage temp. |
2-8°C |
| solubility |
0.05g/l |
| form |
Liquid |
| pka |
>14 (Schwarzenbach et al., 1993) |
| color |
Clear colorless |
| Odor |
Strong, slightly irritant; fragrant; aromatic. |
| Odor Threshold |
0.0084ppm |
| explosive limit |
0.8-6.0%(V) |
| Water Solubility |
Soluble in alcohol, ether, acetone, benzene, carbon tetrachloride. Insoluble in water. |
| Merck |
14,2617 |
| BRN |
1236613 |
| Henry's Law Constant |
13.0, 15.3, and 23.9 at 28.0, 35.0, and 46.1 °C, respectively (headspace method, Hansen et al.,
1993) |
| Dielectric constant |
2.4（20℃） |
| Exposure limits |
Flammable liquid; flash point (closed cup)
36°C (97°F) (NFPA 1986), 39°C (102°F)
(Merck 1996), 35.5°C (96°F) (Meyer 1989);
vapor pressure 8 torr at 20°C (68°F); vapor
density 4.1 (air=1); the vapor is heavier than
air and may travel a considerable distance
to a nearby ignition source and flash back;
autoignition temperature 425°C (797°F); fire- extinguishing agent: dry chemical, foam, or
CO2; use a water spray to keep fire- exposed
containers cool and to disperse the vapors。
Cumene forms explosive mixtures in the
air within the range 0.9–6.5% by volume in
air. Cumene may form peroxide on prolonged
exposure to air. It should be tested for peroxides before it is subjected to distillation or
evaporation。. |
| Stability |
Stable, but may form peroxides in storage if in contact with the air. Test for the presence of peroxides before heating or distilling. Combustible. Incompatible with strong oxidizing agents. |
| InChIKey |
RWGFKTVRMDUZSP-UHFFFAOYSA-N |
| LogP |
3.55 at 20℃ |
| Surface tension |
28.21mN/m at 20°C |
| CAS DataBase Reference |
98-82-8(CAS DataBase Reference) |
| IARC |
2B (Vol. 101) 2013 |
| NIST Chemistry Reference |
Benzene, (1-methylethyl)-(98-82-8) |
| EPA Substance Registry System |
Cumene (98-82-8) |
