Top Suppliers:I want be here

74-86-2

74-86-2 structure
74-86-2 structure

Name acetylene
Synonyms Welding Gas
MFCD00008567
4-01-00-00939
Ethyne
C2H2
Ethine
vinylene
Acetylen
EINECS 200-816-9
ethenylene
Narcylen
Acetylene
Density 0.6±0.1 g/cm3
Boiling Point -28 ºC
Melting Point -88°C
Molecular Formula C2H2
Molecular Weight 26.037
Flash Point -18 ºC
Exact Mass 26.015650
LogP 0.37
Vapour Pressure 69690.6±0.1 mmHg at 25°C
Index of Refraction 1.316
Water Solubility 0.106 g/100 mL

CHEMICAL IDENTIFICATION

RTECS NUMBER :
AO9600000
CHEMICAL NAME :
Acetylene
CAS REGISTRY NUMBER :
74-86-2
LAST UPDATED :
199712
DATA ITEMS CITED :
22
MOLECULAR FORMULA :
C2-H2
MOLECULAR WEIGHT :
26.04
WISWESSER LINE NOTATION :
1UU1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Human
DOSE/DURATION :
20 pph
TOXIC EFFECTS :
Behavioral - headache Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
34ZIAG "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969 Volume(issue)/page/year: -,67,1969
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Human
DOSE/DURATION :
50 pph/5M
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
TABIA2 Tabulae Biologicae. (The Hague, Netherlands) V.1-22, 1925-63. Discontinued. Volume(issue)/page/year: 3,231,1933
TYPE OF TEST :
LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Mammal - species unspecified
DOSE/DURATION :
50 pph/5M
REFERENCE :
AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher information, see NSAPCC. Volume(issue)/page/year: 138,65,1928 *** REVIEWS *** ACGIH TLV-Simple asphyxiant, NO TWA 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:ASPHYXIANTS/GASES DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,8,1973 OSHA PEL (Construc):simple asphyxiant - inert gas and vapor CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):Simple asphyxiant - inert gas and vapor CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):Simple asphyxiant - inert gas and vapor CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 1 ppm (14 mg/m3) JAN 1993 OEL-AUSTRALIA:Asphyxiant JAN 1993 OEL-BELGIUM:Asphyxiant JAN 1993 OEL-HUNGARY:Asphyxiant JAN 1993 OEL-THE NETHERLANDS:Asphyxiant JAN 1993 OEL-SWITZERLAND:TWA 1000 ppm (1080 mg/m3) JAN 1993 OEL-UNITED KINGDOM:Asphyxiant 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 ACETYLENE-air:CL 2500 ppm/15M 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 - 03298 No. of Facilities: 85909 (estimated) No. of Industries: 341 No. of Occupations: 111 No. of Employees: 704679 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 03298 No. of Facilities: 2514 (estimated) No. of Industries: 41 No. of Occupations: 52 No. of Employees: 48962 (estimated) No. of Female Employees: 3072 (estimated)
Hazard Codes F+:Highlyflammable;
Risk Phrases R5
Safety Phrases S9-S16-S33
RIDADR UN 1001
Hazard Class 2.1
HS Code 2901292000
HS Code 2901292000
Summary 2901292000 ethyne。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:2.0%。general tariff:45.0%