... sulfate, potassium chloride, the Russian Red K, NPK fertilizer, ammonium chloride, potassium nitrate, MAP, DAP, ammonium ... metasilicate, is sodium silicate, cryolite, aluminum fluoride, brake powder, rubber additives, silica, calcium aluminate, TSP, SSP, ... , steel-making additives, melting agent, swelling, alumina powder, phosphogypsum, gypsum, benefication agent, environmental protection materials. ...