*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : CR0525000
CHEMICAL NAME           : Barium silicofluoride
CAS REGISTRY NUMBER     : 17125-80-3
OTHER CAS REGISTRY NOS. : 1304-13-8
LAST UPDATED            : 199712
DATA ITEMS CITED        : 30
MOLECULAR FORMULA       : F6-Si.Ba
MOLECULAR WEIGHT        : 279.43
WISWESSER LINE NOTATION :  BA  SI-F6
COMPOUND DESCRIPTOR     : Agricultural Chemical
SYNONYMS/TRADE NAMES :
   * Barium fluorosilicate
   * Barium fluosilicate
   * Barium hexafluorosilicate
   * Barium hexafluorosilicate(2-)
   * Bariumsilicofluorid
   * Barium silicon fluoride
   * Silicate(2-), hexafluoro-, barium
   * Silicate(2-), hexafluoro-, barium (1:1)
   * Silicon fluoride barium salt
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 175 mg/kg
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - cyanosis
   Gastrointestinal - hypermotility, diarrhea
   Musculoskeletal - other changes
REFERENCE :
   AFDOAQ Quarterly Bulletin--Association of Food and Drug Officials of the
   United States.  (Denver, CO)  V.3-38, 1939-74.  Volume(issue)/page/year:
   15,122,1951
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 175 mg/kg
TOXIC EFFECTS :
   Behavioral - tremor
   Gastrointestinal - hypermotility, diarrhea
   Gastrointestinal - changes in structure or function of salivary glands
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 39,246,1930

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.5 mg(Ba)/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 0.5 mg(Ba)/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: 3,21,1971

   OSHA PEL (Gen Indu):8H TWA 0.5 mg(Ba)/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 (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 0.5 mg(Ba)/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 (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 0.5 mg(Ba)/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 (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 0.5 mg(Ba)/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

   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 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-AUSTRIA:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-BELGIUM:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-DENMARK:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-FINLAND:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-GERMANY:TWA 0.5 mg(Ba)/m3 (total dust) JAN 1993
   
   OEL-HUNGARY:STEL 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-THE PHILIPPINES:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-POLAND:TWA 0.5 mg(Ba)/m3;STEL 1.5 mg(Ba)/m3 JAN 1993
   
   OEL-SWITZERLAND:TWA 0.5 mg(Ba)/m3;STEL 1 mg(Ba)/m3 JAN 1993
   
   OEL-TURKEY:TWA 0.5 mg(Ba)/m3 JAN 1993
   
   OEL-UNITED KINGDOM:TWA 0.5 mg(Ba)/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

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

 
                            *** END OF RECORD ***