Names
Preferred IUPAC name: (1-methylethyl)benzene
Other names
Isopropylbenzene
Cumene (no longer recommended)
Cumol
Identifiers
CAS Number: 98-82-8
JSmol: Interactive image
ChEBI: CHEBI:34656
ChemSpider: 7128
ECHA InfoCard: 100.002.458
KEGG: C14396
PubChem: 7406
RTECS number: GR8575000
UNII: 8Q54S3XE7K
Properties
Chemical formula: C9H12
Molar mass: 120.20 g·mol
Appearance: colorless liquid
Odor: gasoline
Density: 0.862 g cm, liquid
Melting point: −96 °C (−141 °F; 177 K)
Boiling point: 152 °C (306 °F; 425 K)
Solubility in water: negligible
Solubility: acetone
Vapor pressure: 8 mm (20°C)
Magnetic susceptibility: -89.53·10 cm/mol−63
Refractive index: 1.4915 (20 °C)
Viscosity: cP
Hazards
hazards: flammable
R-phrases: R10 R37 R51/53 R65
S-phrases: S24 S37 S61 S62
NFPA 704:
Flash point: 43 °C (109 °F; 316 K)
Autoignition
temperature: 424 °C (795 °F; 697 K)
Explosive limits: 0.9-6.5%
LD
median dose: 12750 mg/kg (oral, mouse)
1400 mg/kg (oral, rat)
median concentration: 200 ppm (mouse, 7 hr)
lowest published: 8000 ppm (rat, 4 hr)
NIOSH
PEL: TWA 50 ppm (245 mg/m) [skin]3
REL: TWA 50 ppm (245 mg/m) [skin]3
IDLH: 900 ppm
Related compounds
Related compounds: ethylbenzene
Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).
Infobox references