isopentane

Modify Date: 2024-01-02 16:03:48

isopentane Structure
isopentane structure
 Common Name isopentane
CAS Number 78-78-4 Molecular Weight 72.14880
Density 0.62 g/mL at 25 °C(lit.) Boiling Point 30 °C(lit.)
Molecular Formula C5H12 Melting Point -160 °C
MSDS Chinese USA Flash Point −51 °C
Symbol GHS02 GHS07 GHS08 GHS09
GHS02, GHS07, GHS08, GHS09		 Signal Word Danger

 Names

Name isopentane
Synonym More Synonyms

 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.)

 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
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

 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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 Synonyms

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
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