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

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℃

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)

SecurityInformation

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

Hazardous Substances Data：

98-82-8(Hazardous Substances Data)

Toxicity：

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

IDLA：

900 ppm [10% LEL]