the product name is Calcined Alumina

Calcined Alumina Calcined alumina is made of high quality industrial alumina as raw material,Website:http://www.abrasivesupplier.com, adopts the new type of high temperature down-draft kiln and scientifically the calcination method of production, so it has good performance, less impurity content, high conversion rate and heat-conduction property. Chemical Composition(%)ItemsAl2O3Fe2O3SiO2Na2OSpec(%)99-99.70.02-0.040.03-0.150.03-0.25Physical Index:? Crystal Form: Alpha Alumina? pH?9.0 - 10.5? Specific Gravity: 3.95 g/cm3Application:?  Widely used in refractory industry, ceramic industry, polishing industry , etc.?  Suitable for glaze ceramics, engineering ceramics, ceramic insulation, wear-resisting ceramics.?  Alumina is also used for electronic components, high temperature resistance porcelain, roller, textile porcelain pieces, circuit substrate, refractory materials, etc.?  It also can meet the requirements of hot die casting, injection pressure, isostatic pressing, rolling film, stretch film, grouting. Size Available:325mesh, 500mesh, 5um, 3um, 2um, 1um, 0.5um, 0.3um..Other special spec. could be supplied as required.