Molecular formula : K2SiF6
Molecular weight : 220.26
Property : White crystal or powder, odorless, flavorless, Relative density of crystal of hexagonal system: 3.08; Relative density of crystal of cubic system: 2.665(17°C) . slightly soluble in water, soluble in hydrochloric acid, insoluble in alcohol. Decomposed into potassium fluoride, hydrogen fluoride and silicic acid in hot water.
Use : Preservatives in wood industry; auxiliaries in metallurgical industry; produce potash glass, optical glass, opaque glass in glass industry; pesticide in pesticide industry; intermediates in organic industry; analytical reagent in analytical chemistry etc..
Product quality : Company standard
|
Index name |
Index |
Index name |
Index |
| Potassium fluorosilicate (K2SiF6), % ≥ |
99.0 |
Water content, % ≤ |
0.5 |
| Iron (Fe), % ≤ |
0.005 |
Chloride (base on Cl), % ≤ |
0.1 |
| Free acid (base on H2SiF6), % ≤ |
0.1 |
(P2O5), % ≤ |
0.005 |
| Heavy metal (base on Pb), % ≤ |
0.01 |
Fineness (80 mesh), % ≥ |
90 |
| Sulfate radical (base on SO4), % ≤ |
0.2 |
Insoluble substance in water, % ≤ |
0. 5 |
Casing : Plastic knitted bag with vinyon liner. 50kg per bag.
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