n-Butane

MOLECULAR FORMULA :

C4-H10

MOLECULAR WEIGHT :

58.14

WISWESSER LINE NOTATION :

4H

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 :

658 gm/m3/4H

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2- 1939- Volume(issue)/page/year: 30,102,1967

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

680 gm/m3/2H

REFERENCE :

FATOAO Farmakologiya i Toksikologiya (Moscow). For English translation, see PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2- 1939- Volume(issue)/page/year: 30,102,1967 *** REVIEWS *** ACGIH TLV-TWA 1900 mg/m3 (800 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 500 ppm (1200 mg/m3) DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,12,1973 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 800 ppm (1900 mg/m3) JAN 1993 OEL-AUSTRIA:TWA 1000 ppm (2300 mg/m3) (all isomers) JAN 1993 OEL-BELGIUM:TWA 800 ppm (1900 mg/m3) JAN 1993 OEL-DENMARK:TWA 500 ppm (1200 mg/m3) JAN 1993 OEL-FINLAND:TWA 800 ppm (1900 mg/m3);STEL 1000 ppm (2350 mg/m3) JAN 1993 OEL-FRANCE:TWA 800 ppm (1900 mg/m3) JAN 1993 OEL-GERMANY:TWA 1000 ppm (2350 mg/m3) (all isomers) JAN 1993 OEL-HUNGARY:TWA 300 mg/m3;STEL 900 mg/m3 JAN 1993 OEL-INDIA:TWA 800 ppm (1900 mg/m3) JAN 1993 OEL-JAPAN:TWA 500 ppm (1200 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 600 ppm (1430 mg/m3) JAN 1993 OEL-RUSSIA:TWA 500 ppm;STEL 300 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 800 ppm (1900 mg/m3) (all isomers) 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 RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO BUTANE-air:10H TWA 800 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 13480 No. of Facilities: 5871 (estimated) No. of Industries: 55 No. of Occupations: 53 No. of Employees: 61958 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 13480 No. of Facilities: 69613 (estimated) No. of Industries: 307 No. of Occupations: 200 No. of Employees: 988880 (estimated) No. of Female Employees: 186786 (estimated)