Chemical properties black powder particles, particle size 0 ~ 500 mu m. The relative density 1.8 ~ 2.1. Insoluble in water and organic solvents  Use 1. Rubber industry as reinforcing filling agent. 2. Paint inks industry used the paint and ink pigments. 3. Black paper production such as photographic material packing paper and radio equipment with high conductivity of carbon use made of black paper products. 4. Carbon and typing belt for dark color and can remain with the carrier. 5. Plastic shading, ink, gramophone records, shoeshine, paint cloth, leather coatings, non-ferrous cement, electrode, the brush, the dry, etc.