We are offering activated alumina.
activated alumina is an aluminum oxide which is highly porous and exhibits tremendous surface area. Activated alumina is resistant to thermal shock and abrasion and will not shrink, swell, soften nor disintegrate when immersed in water.
surface area are in the range 345-415 m2/gm . Because it has a higher capacity for water than silica gel at elevated temperatures it is mainly used as a desiccant for warm gases including air. In many commercial applications zeolitic materials have now replaced it.
grades sorb- I ( instrument air drying grade )
shape spheres / balls
sizes in mm
5-8 / 2-5 / 3-5
bulk density ( gm /lit )
0.740-0.890
bet surface area (m2 / gm) 345-415
pore volume (cc / gm) 0.40-0.50
adsorption capacity (60 % rh) min 21.5
attrition loss (%) 0.2
chemical composition (%)
na2o nmt 0.5
fe2o3 nmt 0.05
sio2 nmt 0.10
crushing strength %
97
loi (700oc-1000oc) 6-8
al2o3 (by difference) min 93

We are offering activated alumina.
activated alumina is an aluminum oxide which is highly porous and exhibits tremendous surface area. Activated alumina is resistant to thermal shock and abrasion and will not shrink, swell, soften nor disintegrate when immersed in water.
surface area are in the range 345-415 m2/gm . Because it has a higher capacity for water than silica gel at elevated temperatures it is mainly used as a desiccant for warm gases including air. In many commercial applications zeolitic materials have now replaced it.
grades sorb- I ( instrument air drying grade )
shape spheres / balls
sizes in mm
5-8 / 2-5 / 3-5
bulk density ( gm /lit )
0.740-0.890
bet surface area (m2 / gm) 345-415
pore volume (cc / gm) 0.40-0.50
adsorption capacity (60 % rh) min 21.5
attrition loss (%) 0.2
chemical composition (%)
na2o nmt 0.5
fe2o3 nmt 0.05
sio2 nmt 0.10
crushing strength %
97
loi (700oc-1000oc) 6-8
al2o3 (by difference) min 93