... Silicon metal 553 1. Chemical composition Si :98.5%min Fe 0.5% max, Al 0.5%,Ca 0.3% 2.Granularity 10mm-100mm 3 ... -AES,ICP-AES,NAA,AAS,AFS,MS,XRF,IC,etc 5.ApplicationIndustrial refractories,powder metallurgy industry.organic silicon chemical industry ,Al ...