The chemical composition of alumina, impurity content, no more than:

Fe2O3  - 0,03%; SiO2 - 0,02%; Na2O- 0,4%

The phase composition of the material:

α- Al2O3 ≈10-15 %, γ- Al2O3≈80-90%, other <1,5%

Content of L.O.I. (determined at 300-1100)

no more than 1,2%

Bulk weight, g/cm3

≈  1,0

Density, g/cm3

≈  3,2 – 3,4

Specific surface area (SSA), m2/g

≈ 70-90

-5   micron

no more than 1%

-45 micron

no more than 20%

ITEM

AL2O3 %

Na2O%

SiO2%

Fe2O3%

a-AL2O3%

MESH

SNA80

99.6

0.27

0.02

0.02

95

80-120

SNA30

99.6

0.25

0.02

0.02

95

325