Activated alumina 

Activated alumina is a form of aluminum oxide that is very porous and bonds with certain liquids and gases without its chemical or physical form changing. Due to its high porosity, it has a high ratio of surface area to weight. It is commonly used as a desiccant, for water treatment, and as a catalyst in natural gas and refining operations.

Property

1)epigranular

2)glossy surface

3)high mechanical strength 

4)good hygroscopicity 

5)keep its shape after absorbs water

6)non-toxic, tasteless, insoluble in water and organic soluble.

Application 

Activated alumina can be used as defluorinating agent. It is widely used 
for fluoride removal, dearsenization, decoloration, and deodorization in drinking
 water and full scale plant.Activated alumina has large specific surface 
area due to its small grain size. 

Specification 

Size:                            1.6-2.4mm,2-3mm,3-5mm,5-8mm

Bulk density:               >0.7g/cm

Specific surface area: >300m/g

Pore volume:              >0.38cm/g

Compressive strength:>80

Wear rate:                      <0.6