isopentane

Names

[ CAS No. ]:
78-78-4

[ Name ]:
isopentane

[Synonym ]:
Isopentan
iso-C5H12
JJDW
MFCD00009338
ISOPROPENTANE
methylbutane
2-methyl-butane
iso-pentane
Isoamylhydride
2-Methylbutane
2-methyl-butan
EINECS 201-142-8
1,1-dimethylpropane

Chemical & Physical Properties

[ Density]:
0.62 g/mL at 25 °C(lit.)

[ Boiling Point ]:
30 °C(lit.)

[ Melting Point ]:
-160 °C

[ Molecular Formula ]:
C₅H₁₂

[ Molecular Weight ]:
72.14880

[ Flash Point ]:
−51 °C

[ Exact Mass ]:
72.09390

[ LogP ]:
2.05240

[ Vapour density ]:
2.6 (vs air)

[ Vapour Pressure ]:
11.17 psi ( 20 °C)

[ Index of Refraction ]:
n20/D 1.354(lit.)

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EK4430000

CHEMICAL NAME :: Butane, 2-methyl-

CAS REGISTRY NUMBER :: 78-78-4

LAST UPDATED :: 199710

DATA ITEMS CITED :: 10

MOLECULAR FORMULA :: C5-H12

MOLECULAR WEIGHT :: 72.17

WISWESSER LINE NOTATION :: 2Y1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 419 gm/m3/2H

TOXIC EFFECTS :: Behavioral - excitement

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 58,74,1936 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 10 gm/kg/4W-I

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

REFERENCE :: TIHEEC Toxicology and Industrial Health. (Princeton Scientific Pub. Co., POB 2155, Princeton, NJ 08540) V.1- 1985- Volume(issue)/page/year: 1(3),67,1985 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-DENMARK:TWA 500 ppm (1500 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 54246 No. of Facilities: 197 (estimated) No. of Industries: 6 No. of Occupations: 9 No. of Employees: 21748 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 54246 No. of Facilities: 132 (estimated) No. of Industries: 5 No. of Occupations: 13 No. of Employees: 6605 (estimated) No. of Female Employees: 1247 (estimated)

Safety Information

[ Symbol ]:

GHS02, GHS07, GHS08, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H224-H304-H336-H411

[ Supplemental HS ]:
Repeated exposure may cause skin dryness or cracking.

[ Precautionary Statements ]:
P210-P261-P273-P301 + P310-P331

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US)

[ Hazard Codes ]:
Xn:Harmful

[ Risk Phrases ]:
R12;R51/53;R65;R66;R67

[ Safety Phrases ]:
S9-S16-S29-S33-S61-S62

[ RIDADR ]:
UN 1265 3/PG 1

[ WGK Germany ]:
2

[ RTECS ]:
EK4430000

[ Packaging Group ]:
I

[ Hazard Class ]:
3

[ HS Code ]:
2901100000

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2901100000

[ Summary ]:
2901100000 saturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

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