Fluosilicic Acid (silicofluoric acid) 50%, 45%, 40%

Model NO.: 1806


Appearance: Liquid


Acid Strength: Strong Acid


Quality: Tech Grade


Element: Monobasic Acid


Volatility: Volatile Acid


Full Name: Fluosilicic Acid (Silicofluoric Acid)


Other Names: Anhydrous


Einecs No: 231-634-8


Dangerous Transport Code: Un 1790 8/Pg 2


Hazard Identification: R35 R26/27/28


Trademark: Eminent


Origin: China




Classification: Hydrofluoric Acid


Grade Standard: Electron Grade


Kind: Inorganic Acid


Packaging: Plastic Drum


Oxidation: Oxidizing Acid


Stability: Labile Acid


CAS: 7664-39-3


Mf: Df


Purity: 40.50.60.70


Pubchem No.: 24854662


Ignition Residue: ≤ 0.05 %


Specification: ISO 9001


HS Code: 3902100090


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.

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Product Categories : Adipic Acid