*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : VW2327000
CHEMICAL NAME           : Silicon fluoride
CAS REGISTRY NUMBER     : 7783-61-1
LAST UPDATED            : 199712
DATA ITEMS CITED        : 31
MOLECULAR FORMULA       : F4-Si
MOLECULAR WEIGHT        : 104.09
WISWESSER LINE NOTATION : .SI..F4
SYNONYMS/TRADE NAMES :
   * Perfluorosilane
   * Silane, tetrafluoro-
   * Tetrafluorosilane
 
                       *** 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           : 2272 ppm
TOXIC EFFECTS :
   Sense Organs and Special Senses (Eye) - lacrimation
   Lungs, Thorax, or Respiration - acute pulmonary edema
   Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
   JTSCDR Journal of Toxicological Sciences.  (Japanese Soc. of Toxicological
   Sciences, 4th Floor, Gakkai Center Bldg., 4-16, Yayoi 2-chome, Bunkyo-ku,
   Tokyo 113, Japan)  V.1-    1976-  Volume(issue)/page/year: 18,394,1993
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 300 ppm/5H/3D-I
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - emphysema
   Kidney, Ureter, Bladder - changes in tubules (including acute renal failure,
   acute tubular necrosis)
   Related to Chronic Data - death
REFERENCE :
   BJIMAG British Journal of Industrial Medicine.  (British Medical Journal,
   Box 560B, Kennebunkport, ME 04046)  V.1-    1944-  Volume(issue)/page/year:
   27,1,1970

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 2.5 mg(F)/m3
   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

   ACGIH TLV-Not classifiable as a human carcinogen
   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 2.5 mg(F)/m3
   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:
   3,116,1971

   OSHA PEL (Gen Indu):8H TWA 2.5 mg(F)/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 2.5 mg(F)/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 2.5 mg(F)/m3
   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 2.5 mg(F)/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 2.5 mg(F)/m3 JAN 1993
   
   OEL-BELGIUM:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-DENMARK:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-FINLAND:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-FRANCE:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-GERMANY:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-HUNGARY:TWA 1 mg(F)/m3;STEL 2 mg(F)/m3 JAN 1993
   
   OEL-THE NETHERLANDS:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-THE PHILIPPINES:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-POLAND:TWA 1 mg(F)/m3 JAN 1993
   
   OEL-SWEDEN:TWA 2 mg(F)/m3 JAN 1993
   
   OEL-SWITZERLAND:TWA 1.8 ppm (1.5 mg(F)/m3);STEL 9.0 ppm JAN 1993
   
   OEL-THAILAND:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-TURKEY:TWA 2.5 mg(F)/m3 JAN 1993
   
   OEL-UNITED KINGDOM:TWA 2.5 mg(F)/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 FLUORIDES, INORGANIC-air:10H TWA 2.5 mg(F)/m3
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 - 84445
       No. of Facilities: 46 (estimated)
       No. of Industries: 2
       No. of Occupations: 3
       No. of Employees: 414 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 84445
       No. of Facilities: 51 (estimated)
       No. of Industries: 4
       No. of Occupations: 5
       No. of Employees: 2896 (estimated)
       No. of Female Employees: 394 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***