with high quality alumina oxide powder as raw materials, white fused alumina is produced by fusing and extracting from crystallization. it is featured by high purity, self-sharpening, and acid-alkali and corrosion resistance, temperature tolerance. compared with brown fused alumina, its thermal stability properties is slightly higher and toughness is slightly lower. the abrasive tools made of it are applicable for grinding high carbon copper and high-speed steel. white fused alumina chemical composition: al2o3:99%min na2o:0.5%max cao:0.5% max magnetic material content(%):0.003 %max we have strict control about company & quality;our service is full-around and first-class. so we¡¯re you wise choice.don¡¯t hesitate to contact us. contact person: ms. liang xiaofei(sales manager) helen(at)rs-abrasive.com