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 : Fluosilicic acid 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.