Potassium Fluorosilicate
Formula: K2SiF6
CAS No.: 16871-90-2
M. W.: 220.25
Properties: White odorless crystals or powder; Weak acidity; Insoluble in water, aqueous ammonia and ethanol; Soluble in hydrochloric acid; Decompose by heat to form potassium fluoride(KF) and silicon tetrafluoride(SiF4); Hydrolyze in hot water to form hydrogen fluoride(HF) and silicate acid(H2SiO3); Have toxic
Application: Wood preservation; Ceramics made; Metallurgy of aluminium and magnesium; Optical glass; Synthetic mica and antisepsis
Storage: Store at a ventilating, and dry place, keep away from food
Packing: 25 Kg net, double plastic bags lined plastic woven bag.
Specification(%): |
|
Assay(K2 SiF6 ) |
98.0min |
MgSO4 |
0.5max |
H2SiF6 |
0.2max |
MgF2 |
0.15max |
H2O |
0.6max |
Water-insoluble matter |
0.5max |
Heavy metal (Pb) |
0.1max |
Mesh size |
|
-60 mesh |
98min |