Powder, Granular or Micro pearl form, Soluble in caustic alkali and hydrofluoric acid, insoluble in acids, water and various solvents. Resistance to high temperature, no combustion, good insulation properties.It can be used in powdery food to increase the fluidity of powder, or to improve the diffusion ability of dry powder in liquid. It is mainly used in caking inhibiter, thickener, stabilizer, flavor and spice dryer, etc.