*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : VV1400000
CHEMICAL NAME           : Silane
CAS REGISTRY NUMBER     : 7803-62-5
LAST UPDATED            : 199712
DATA ITEMS CITED        : 18
MOLECULAR FORMULA       : H4-Si
MOLECULAR WEIGHT        : 32.13
WISWESSER LINE NOTATION :  SI  H4
COMPOUND DESCRIPTOR     : Mutagen
SYNONYMS/TRADE NAMES :
   * Flots 100SCO
   * Monosilane
   * Silicane
   * Silicon tetrahydride
 
                       *** 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           : 9600 ppm/4H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   42,417,1977
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 9600 ppm/4H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   AMRL** Aerospace Medical Research Laboratory Report.  (Aerospace Technical
   Div., Air Force Systems Command, Wright-Patterson Air Force Base, OH 45433)
   Volume(issue)/page/year: TR-72-62,1972
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 1 pph
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 307,335,1994

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 6.6 mg/m3 (5 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

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 5 ppm (7 mg/m3) JAN 1993
   
   OEL-BELGIUM:TWA 5 ppm (6.6 mg/m3) JAN 1993
   
   OEL-DENMARK:TWA 0.5 ppm (0.7 mg/m3) JAN 1993
   
   OEL-FINLAND:TWA 0.5 ppm (0.7 mg/m3);STEL 1.5 ppm (2.0 mg/m3) JAN 1993
   
   OEL-FRANCE:TWA 5 ppm (7 mg/m3) JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.5 ppm (0.7 mg/m3) JAN 1993
   
   OEL-SWITZERLAND:TWA 0.5 ppm (0.7 mg/m3) JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.5 ppm (0.7 mg/m3);STEL 1 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 SILICON TETRAHYDRIDE-air:10H TWA 5 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 - 83770
       No. of Facilities: 1732 (estimated)
       No. of Industries: 44
       No. of Occupations: 41
       No. of Employees: 33190 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 83770
       No. of Facilities: 510 (estimated)
       No. of Industries: 11
       No. of Occupations: 17
       No. of Employees: 25354 (estimated)
       No. of Female Employees: 2999 (estimated)

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

 
                            *** END OF RECORD ***