Cumene manufacturers and suppliers

Cumene suppliers

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: n20/D 1.491(lit.)

Flash point:: 115 °F

storage temp.: 2-8°C

solubility: 0.05g/l

pka: >14 (Schwarzenbach et al., 1993)

form: Liquid

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.

InChI: 1S/C9H12/c1-8(2)9-6-4-3-5-7-9/h3-8H,1-2H3

InChIKey: RWGFKTVRMDUZSP-UHFFFAOYSA-N

SMILES: CC(C)c1ccccc1

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)

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

target organs: Respiratory system

PPE: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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: TSCA listed

HazardClass: 3

PackingGroup: III

HS Code: 29027000

Storage Class: 3 - Flammable liquids

Hazard Classifications: Aquatic Chronic 2
Asp. Tox. 1
Carc. 1B
Flam. Liq. 3
STOT SE 3

Hazardous Substances Data: 98-82-8(Hazardous Substances Data)

Toxicity: LD50 orally in rats: 2.91 g/kg (Smyth)

IDLA: 900 ppm [10% LEL]

Limited Quantities: 5.0 L (1.3 gallons) (liquid)

Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

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.

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