This product is white fine powder, narrow particle size distribution,18% firing shrinkage rate.

The following is the detail of the products:

product model	Al2O3	Na2O3	SiO2	Fe2O3	ignition loss	true density	grain size	apparent density	average particle size	features and applications
YFCA-4	99.7	0.04	0.05	0.02	0.12	3.95	1.0	0.8	1.4±0.2	average crystal size,18% shrinkage rate, often used as granulation powder of low temperature 99 ceramics and basal plate by hot pressing,casting.
YFCA-4G	99.7	0.04	0.05	0.02	0.12	3.95	1.0	0.7	1.2±0.2	the same as YFCA-4G

calcined alumina for fine ceramics