High Purity Alumina

Product Detail

Molecular formula: Al2O3, melting point: 2050 ?




99.995% high purity alumina series is mainly used for LED artificial sapphire crystal, advanced  ceramics, PDP phosphor and some high performance materials. As a sapphire crystal raw materials, according to different requirements can provide powder,  particle, block or column and other types.

It is mainly used for high pressure sodium lamp, new luminescent  material, special ceramic, advanced coating, trichromatic, catalyst and some high performance materials. According to different requirements can provide  powder, particles and other types.





Technical indicator:

Item		Puirity      (%)=	paticle      d50(µm)	surface area      (m2/g)	bulk density      ( g/cm3)	Impurity content      (ppm)=
						k	Na	Ca	Mg	Fe	Si	Ti	Cu
4N-40B	?-AL2O3	99.995	30-40	70-100	0.60-0.70	1	25	1	1	1	15	1	1
4N-D3	?-AL2O3	99.995	1-3	80-120	0.50-0.60	1	25	1	1	1	15	1	1
4N-40B	a- AL2O3	99.995	30-40	=5	0.70-0.80	1	25	1	1	1	15	1	1
4N-D3	a- AL2O3	99.995	3-5	=10	0.60-0.70	1	25	1	1	1	15	1	1
4NA	a- AL2O3	99.99	0.4-0.8*	5-20	0.25-0.32	50	10	2	2	15	15	1	2

 

Storage:

?Avoid moisture, avoid scrolling, throw  and sharp shocking during transportation, rainproof facilities should be  readied..

?It should be stored in dry and  ventilated warehouseto prevent contamination or moisture.




Package:

Type	Plastic bag	Super sack/Jumbo bag
Powder	25kg/55lb	1000kg/ 2200 lb