It is thebase stocks to manufacture potassium carbonate, potassium hydroxide, potassium chlorate, potassium nitrate, potassium sulfate and chrome. Serves as extinguishes a flame the medicinal preparation; When electrolysis magnesium chloride system metal magnesium, takes the configuration electrolyte the component; On the medicine serves as the diuretic and the prevention kaliopenia's medicine; The dye industry uses in producing the G salt, the reactive dyes. Uses in making the wax candlewick, the photography, the galvanization, the steel and iron heat treatment medicinal preparation. Assay99.5%Sulfate0.004%Appearance of solutionTo pass testWater Insolution0.002%Iodate0.008%Iron0.0004%Br0.05%Arsenic0.0001%Calcium0.001%Magnesium0.002%Sodium0.01%Phosphate0.002%Heavy metala(Pb)0.001%