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MSDS  : Silicate(2-), hexafluoro-, diammonium
CAS  : 16919-19-0
SYNONYMS  : * Ammonium fluosilicate * Ammonium hexafluorosilicate * Ammonium silicofluoride * Ammonium silicon fluoride * Diammonium fluosilicate * Diammonium hexafluorosilicate(2-) * Diammonium silicon hexafluoride * LPE 6
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : VV7800000
CHEMICAL NAME : Silicate(2-), hexafluoro-, diammonium
CAS REGISTRY NUMBER : 16919-19-0
LAST UPDATED : 199707
DATA ITEMS CITED : 14
MOLECULAR FORMULA : F6-Si.2H4-N
MOLECULAR WEIGHT : 178.19
COMPOUND DESCRIPTOR : Agricultural Chemical
SYNONYMS/TRADE NAMES :
* Ammonium fluosilicate
* Ammonium hexafluorosilicate
* Ammonium silicofluoride
* Ammonium silicon fluoride
* Diammonium fluosilicate
* Diammonium hexafluorosilicate(2-)
* Diammonium silicon hexafluoride
* LPE 6

*** HEALTH HAZARD DATA ***

** ACUTE TOXICITY DATA **

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NCNSA6 National Academy of Sciences, National Research Council,
Chemical-Biological Coordination Center, Review. (Washington, DC)
Volume(issue)/page/year: 5,27,1953

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 70 mg/kg
TOXIC EFFECTS :
Peripheral Nerve and Sensation - flaccid paralysis without anesthesia
(usually neuromuscular blockage)
Behavioral - ataxia
Behavioral - muscle contraction or spasticity
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 53(11),80,1988

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 150 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

TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Amphibian - frog
DOSE/DURATION : 224 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

** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 235 mg/kg/30D-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - other changes in urine composition
Musculoskeletal - other changes
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - phosphatases
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 53(11),80,1988

*** REVIEWS ***

TOXICOLOGY REVIEW
AMSSAQ Acta Medica Scandinavica, Supplement. (Almqvist & Wiksell, POB
45150, S-10430 Stockholm, Sweden) No.1-730, 1921-88.
Volume(issue)/page/year: 400,5,1963

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

EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION
FEREAC Federal Register. (U.S. Government Printing Office, Supt. of
Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year:
54,7740,1989

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 OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 84180
No. of Facilities: 2212 (estimated)
No. of Industries: 24
No. of Occupations: 16
No. of Employees: 5578 (estimated)

NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 84180
No. of Facilities: 873 (estimated)
No. of Industries: 12
No. of Occupations: 14
No. of Employees: 12069 (estimated)
No. of Female Employees: 5352 (estimated)

*** STATUS IN U.S. ***

EPA TSCA Section 8(b) CHEMICAL INVENTORY


*** END OF RECORD ***
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Silicate(2-), hexafluoro- 17084-08-1
Silicate(2-), hexafluoro-, diammonium 16919-19-0
Silicate(2-), hexafluoro-, dihydrogen 16961-83-4
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