Use: rubber reinforcing filler, acid can be used for rubber products and general products. Also can be used as surface coating agents, sizing agents, increasing agent, is also used in paints, ceramics, batteries, ceramic, paint, coatings, and so on.
         Performance: Micro-yellow powder, the relative density of 4.0-4.6, do not dissolve in water, acid and alkali and other solvents, heat acid and alkali, non-toxic and can be used for contact with food products.