1.product name:calcined Alumina 2.Appearance:white powde 3.Al2O3:99.5% 4.Made in China calcined aluminaData sheet:

size	Al2O3	SiO2	Fe2O3	Na2O	Loss on lgnition	a-Al2O3	Density
	%	%	%	%	%	%	g/cm3,%
	>=	<=	<=	<=	<=	>=	>=
AF601-C	99.5	0.06	0.04	0.15	0.10	96.0	3.96
AF 620HC	99.5	0.10	0.03	0.15	0.10	95.0	3.95
AF 603DC	99.5	0.06	0.03	0.25	0.10	94.0	3.95
AF 604ZC	99.5	0.06	0.03	0.30	0.10	93.0	3.95

The calcined alumina of our company is produced by the general international law of Bayer, boron free rotary kiln calcined, in addition to sodium washed by water, greatly improving the product quality, purity and stability, and the bulk density of ceramic products, mohs hardness and ability to withstand voltage, etc. Note: The median particle size of above product can be made into special size according to your requirement. Also we can adjust the other specification according to your requirement 

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calcined alumina for refractory and corundum