Potassium hexafluorosilicate - colorless crystals, decompose higher 700°C, solubility in water is 0.12% (mass) at 20°C.
Interaction of H2SiF6 with KOH;
Bubbling of SiF4 containing in waste gases of superphosphate manufacturing through KF solutions with following crystallization
reagent for fluorination of zirconium concentrates and Si electrodeposition from fluoride melts;
component for synthetic mica, enamel and acid-proof putties.
wood preservative and concrete component.