Fluoro-silicate Properties colorless or white diamond or needle-like crystals. Tasteless. The relative density of 1.788. Easy deliquescence, but weathered and lose crystal water. When above 80 ℃ dehydration decomposition and release silicon tetrafluoride gas. Soluble in water, soluble in acid, insoluble in hydrofluoric acid, insoluble in alcohol. Acidic aqueous solution to form the corresponding fluoride and silica and alkali effect. Poisonous. Fluoro-silicate technical implementation of the standard detection index test results fluorine silicate MgSiF6 · 6H2O ≥98.5% MgSO4 · 7H2O ≤0.5% magnesium fluoride acid H2SiF6 ≤0.2% moisture H2O ≤0.6% water insoluble Water undissolvable substance ≤0.25 % silica SiO2 ≤0.05% magnesium fluoride MgF2 ≤0.15% magnesium fluorosilicate magnesium fluorosilicate main purpose is mainly used to improve the hardness and strength of concrete hardener and waterproofing agent. Also fluorine weathering process for the silica surface of the building, for the manufacture of ceramics, fabric pest. Can be used as terms of pesticides. Used for concrete reinforcement, concrete slow hardening agent, rubber latex coagulant, preservatives and textile moth agent. Fluoro-silicate outer packaging and storage white woven bag, 25KG bag. It should be stored in a dry warehouse. Prevent moisture. Note that when gently handling, packaging to prevent breakage.