*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : VV8575000
CHEMICAL NAME           : Silicate(2-), hexafluoro-, magnesium, hexahydrate
CAS REGISTRY NUMBER     : 18972-56-0
OTHER CAS REGISTRY NOS. : 1310-00-5
LAST UPDATED            : 199706
DATA ITEMS CITED        : 9
MOLECULAR FORMULA       : F6-Si.Mg.6H2-O
MOLECULAR WEIGHT        : 274.52
WISWESSER LINE NOTATION :  MG  SI-F6 &QH 6
COMPOUND DESCRIPTOR     : Agricultural Chemical
SYNONYMS/TRADE NAMES :
   * Eulava SM
   * Fluosilicate de magnesium
   * Magnesium hexafluorosilicate
   * Magnesium silicofluoride
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 200 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   28ZEAL "Pesticide Index," Frear, E.H., ed., State College, PA, College
   Science Pub., 1969  Volume(issue)/page/year: 4,265,1969
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Amphibian - frog
DOSE/DURATION           : 420 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses
   Filiales.  (SPPIF, B.P.22, F-41353 Vineuil, France)  V.1-    1849-
   Volume(issue)/page/year: 124,133,1937

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   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

         *** 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 - M1631
       No. of Facilities: 337 (estimated)
       No. of Industries: 6
       No. of Occupations: 8
       No. of Employees: 8457 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - M1631
       No. of Facilities: 12 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 310 (estimated)

 
                            *** END OF RECORD ***