Cumene
Cumene
- CAS:
- 98-82-8
- MF:
- C9H12
- MW:
- 120.19
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Properties
- 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
- n
20/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)
- 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。.
- Dielectric constant
- 2.4(20℃)
- 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℃
Safety Information
- Symbol(GHS)
GHS02,GHS07,GHS08,GHS09
- Signal word
- Danger
- Hazard statements
- H226-H304-H335-H411
- Precautionary statements
- P210-P233-P240-P273-P301+P310-P331
- Hazard Codes
- Xn,N,T,F
- Risk Statements
- 10-37-51/53-65-39/23/24/25-23/24/25-11
- Safety Statements
- 24-37-61-62-45-36/37-16
- RIDADR
- UN 1918 3/PG 3
- OEB
- A
- OEL
- TWA: 50 ppm (245 mg/m3) [skin]
- WGK Germany
- 1
- RTECS
- GR8575000
- F
- 10
- Autoignition Temperature
- 797 °F
- TSCA
- Yes
- HazardClass
- 3
- PackingGroup
- III
- HS Code
- 29027000
- Toxicity
- LD50 orally in rats: 2.91 g/kg (Smyth)
- IDLA
- 900 ppm [10% LEL]
Use
Narcotic action with long-lasting effects; depressant to central nervous system. Acute (short-term) inhalation exposure to cumene may cause headaches, dizziness, drowsiness, slight incoordination, and unconsciousness in humans. Cumene has a potent central nervous system (CNS) depressant action characterized by a slow induction period and long duration of narcotic effects in animals. Cumene is a skin and eye irritant. No information is available on the chronic (long-term), reproductive, developmental, or carcinogenic effects of cumene in humans. Animal studies have reported increased liver, kidney, and adrenal weights from inhalation exposure to cumene. EPA has classified cumene as a Group D, not classifiable as to human carcinogenicity.
14 India supplier list of "Cumene"
- Product Name:Cumene
- Products Intro:Purity: 99% | Package: 1 kg,5 kg, 10 kg,25kg and 1 MT
- Company Type: Manufacturer
- Country/Region: INDIA
- Product Name:Cumene
- Products Intro:Brand:sigma aldrich | Product Number:28220 | Purity:analyticalstandard
- Company Type: Trader
- Country/Region: INDIA
- Product Name:Cumene
- Company Type: Reagent
- Country/Region: INDIA
- Product Name:Cumene
- Company Type: Reagent
- Country/Region: INDIA
- Product Name:Cumene
- Company Type: Reagent
- Country/Region: INDIA
- Product Name:Cumene
- Company Type: Reagent
- Country/Region: INDIA