Isobutane Residual Solvent Standard

Modify Date: 2024-01-01 18:57:19

Isobutane Residual Solvent Standard Structure
Isobutane Residual Solvent Standard structure
 Common Name Isobutane Residual Solvent Standard
CAS Number 75-28-5 Molecular Weight 58.122
Density 0.6±0.1 g/cm3 Boiling Point -10.5±3.0 °C at 760 mmHg
Molecular Formula C4H10 Melting Point −160 °C(lit.)
MSDS N/A Flash Point -71.5±10.3 °C

 Names

Name isobutane
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.6±0.1 g/cm3
Boiling Point -10.5±3.0 °C at 760 mmHg
Melting Point −160 °C(lit.)
Molecular Formula C4H10
Molecular Weight 58.122
Flash Point -71.5±10.3 °C
Exact Mass 58.078251
LogP 2.70
Vapour density 2.01 (21 °C, vs air)
Vapour Pressure 2575.1±0.0 mmHg at 25°C
Index of Refraction 1.352
Stability Stable. Extremely flammable. May form explosive mixtures with air.

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TZ4300000
CHEMICAL NAME :
Propane, 2-methyl-
CAS REGISTRY NUMBER :
75-28-5
LAST UPDATED :
199712
DATA ITEMS CITED :
13
MOLECULAR FORMULA :
C4-H10
MOLECULAR WEIGHT :
58.14
WISWESSER LINE NOTATION :
1Y1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
57 pph/15M
TOXIC EFFECTS :
Behavioral - tremor Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
HUTODJ Human Toxicology. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants., RG 21 2XS, UK) V.1- 1981- Volume(issue)/page/year: 1,239,1982
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1041 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 *** REVIEWS *** TOXICOLOGY REVIEW FAZMAE Fortschritte der Arzneimittelforschung. Progress in Drug Research. (Birkhauser Boston, Inc., c/o Springer-Verlag New York, 44 Hartz Way, Secaucus, NJ 07094) V.1- 1959- Volume(issue)/page/year: 18,365,1974 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-GERMANY:TWA 1000 ppm (2350 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 800 ppm (1900 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 600 ppm (1430 mg/m3);STEL 750 ppm 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 - 81851 No. of Facilities: 118992 (estimated) No. of Industries: 360 No. of Occupations: 199 No. of Employees: 1193478 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81851 No. of Facilities: 110810 (estimated) No. of Industries: 377 No. of Occupations: 233 No. of Employees: 1795168 (estimated) No. of Female Employees: 556159 (estimated)

 Safety Information

Hazard Codes F+
Risk Phrases R12
Safety Phrases S9-S16
RIDADR UN 1969 2.1
WGK Germany -
RTECS TZ4300000
Hazard Class 2.1
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%

 Synonyms

MFCD00008926
ISOBUTANE
2-Methylpropane
EINECS 200-857-2
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