 Fluosilicic acid (silicofluoric acid)
Molecular formula : H2SiF6
Molecular weight : 144.09
Property : Aqueous solution is colorless transparent fuming liquid. Relative density:1.32. Boiling point: 108.5 °C, highly volatile. Soluble in water. Fluosilicic acid does not have anhydrous products, maximum concentration:60.92%. It is harmful to respiratory organs of human body.
Use : It is basic materials to prepare potassium fluozirconate, ammonium fluozirconate, magnesium fluozirconate, copper fluozirconate, barium fluozirconate, lead fluozirconate and other fluosilicate, silicon tetrafluoride. Used in metal plating, wood preservation, beer disinfection, equipment disinfection in brewing industry (1-2% H2SiF6 ) and lead electroanalysis etc.. Also used as mordant and metal finishing.
Product quality : Company standard
Index name |
Special grade |
Special
first
grade |
Special
second
grade |
Second grade |
Appearance |
Colorless transparent liquid |
Fluosilicic acid (H2SiF6),% ≥ |
50.0 |
45.0 |
40.0 |
28-30 |
Free acid(HF),% ≤ |
0.6 |
0.6 |
0.5 |
0.35 |
Sulfate(SO4),%≤ |
0.15 |
0.15 |
0.15 |
0.1 |
Heavy metal(Pb),% ≤ |
-- |
-- |
-- |
0.020 |
Copper(Cu),% ≤ |
-- |
-- |
-- |
0.0002 |
Casing : Packed in polyethylene drum. 25kg , 150kg , 250kg per drum.
|
