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Fluorosilicic Acid   H2SiF6
Hydrofluorosilicic Acid

Product Data Sheet



Chemical Analysis Typical
   
Assay (H2SiF6) 23.00 % Minimum
Fluorine (F) 18.22 % Minimum
Heavy Metals, as Lead (Pb) 00.02 % Maximum
Hydrofluoric Acid (HF) Less than 1.00 %
   
Physical Properties    
   
Description Water white to straw yellow solution, meeting both the AWWA Standard B703-00 and the ANSI/NSF Standard 60 for Fluorosilicic Acid.
Color Straw yellow shall be determined as material with a maximum of 100 units (APHA) in accordance with method 2120B, visual comparison method.
Specific Gravity 1.234 (H20 for 25%) @ 60° F
Boiling Point for 25% 222.5° F
Freezing Point for 25% 4° F (-15.5° C)
Molecular Weight 144.08
Weight per Gallon for 25% 10.29 lbs / gal
Viscosity for 23% 6.5 cps
   
Containers  
   
Bulk Rail Cars 100 tons net weight (approximate)
Bulk Tank Trucks 20 - 25 tons net weight (approximate
   
   
Freight Description  
   
DOT Shipping Classification Class 8 (Corrosive)
DOT Shipping Name Fluorosilicic Acid
Packing Group II Placard: Corrosive
DOT/UN Number 1778


CAS NUMBER: 16961-83-4

Properties
Fluorosilicic Acid is a 20 to 35 percent aqueous solution.  It is a colorless to straw yellow, transparent, fuming, corrosive liquid.  It has a pungent odor and irritating action on the skin.

Uses
  Water fluoridation



The information presented herein is based on data considered to be accurate and that reflects the requirements of the OSHA Hazard Communication Standards in effect as of the date of preparation of the Product Specification Sheet. However, no warranty or representation, express or implied, is made as to the accurancy or completeness of the foregoing data and safety information. In addition, no responsibility can be assumed by vendor for any damage or injury resulting from abnormal use, from any failure to adhere to recommended practices or from any hazards inherent in the nature of the product.
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