*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : MX1050000
CHEMICAL NAME           : Hydrogen selenide
CAS REGISTRY NUMBER     : 7783-07-5
LAST UPDATED            : 199712
DATA ITEMS CITED        : 27
MOLECULAR FORMULA       : H2-Se
MOLECULAR WEIGHT        : 80.98
WISWESSER LINE NOTATION :   H2 SE
SYNONYMS/TRADE NAMES :
   * Electronic E-2
   * Hydrogen selenide
   * Selenium hydride
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 20 mg/m3/1H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   CTOXAO Clinical Toxicology.  (New York, NY)  V.1-18, 1968-81.  For publisher
   information, see JTCTDW.  Volume(issue)/page/year: 17,171,1980
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 300 ppb/8H
TOXIC EFFECTS :
   Sense Organs and Special Senses (Olfaction) - effect, not otherwise
   specified
   Sense Organs and Special Senses (Eye) - conjunctive irritation
   Gastrointestinal - other changes
REFERENCE :
   34ZIAG "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York,
   Academic Press, Inc., 1969  Volume(issue)/page/year: -,320,1969

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.16 mg/m3 (0.05 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

   TOXICOLOGY REVIEW
   CTOXAO Clinical Toxicology.  (New York, NY)  V.1-18, 1968-81.  For publisher
   information, see JTCTDW.  Volume(issue)/page/year: 5,175,1972

   TOXICOLOGY REVIEW
   85DHAX "Medical and Biologic Effects of Environmental Pollutants Series,"
   Washington, DC, National Academy of Sciences, 1972-77
   Volume(issue)/page/year: Se,112,1976

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   OSHA PEL (Gen Indu):8H TWA 0.05 ppm (0.2 mg(Se)/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1910.1000,1994

   OSHA PEL (Construc):8H TWA 0.05 ppm (0.2 mg(Se)/m3)
   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):8H TWA 0.05 ppm
   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):8H TWA 0.05 ppm (0.2 mg/m3)
   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-AUSTRALIA:TWA 0.05 ppm (0.2 mg/m3) JAN 1993
   
   OEL-BELGIUM:TWA 0.05 ppm (0.16 mg/m3) JAN 1993
   
   OEL-DENMARK:TWA 0.01 ppm (0.05 mg/m3) JAN 1993
   
   OEL-FINLAND:STEL 0.01 ppm (0.03 mg/m3) JAN 1993
   
   OEL-FRANCE:TWA 0.02 ppm (0.08 mg/m3) JAN 1993
   
   OEL-GERMANY:TWA 0.05 ppm (0.2 mg/m3) JAN 1993
   
   OEL-JAPAN:TWA 0.05 ppm (0.17 mg/m3) JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.05 ppm (0.2 mg/m3) JAN 1993
   
   OEL-THE PHILIPPINES:TWA 0.05 ppm (0.2 mg/m3) JAN 1993
   
   OEL-RUSSIA:TWA 0.05 ppm JAN 1993
   
   OEL-SWEDEN:TWA 0.01 ppm (0.03 mg/m3);STEL 0.05 ppm (0.2 mg/m3) JAN 1993
   
   OEL-SWITZERLAND:TWA 0.05 ppm (0.17 mg/m3);STEL 0.1 ppm JAN 1993
   
   OEL-TURKEY:TWA 0.05 ppm (0.2 mg/m3) JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.05 ppm (0.2 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 RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO HYDROGEN SELENIDE-air:10H TWA 0.05 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

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY

 
                            *** END OF RECORD ***