Product Apearance

Color

Purity

Size

Density 

Impurities content 

Unit: ppm

Alumina ball

white

More than 99.995%

Diameter:1-2mm

Diameter:2-4mm

3.5g/cm3 

Si≤2 

Na≤4 

K≤1

Fe≤1

Mg≤1

Cu≤1

Alumina powder

white

More than 99.995%

40 micron

3.5g/cm3 

Si≤2 

Na≤3 

K≤1

Fe≤1

Mg≤1

Cu≤1

Alumina pellet

white

99.999%

Diameter:50±3 mm

Height:20±3 mm

3.5-3.8g/cm3 

Si≤1 

Na≤2 

K≤0.5

Fe≤0.5

Mg≤0.5

Cu≤0.5

Alumina crystal

white

99.999%

Irregular shape

3.9g/cm3  

Si≤1 

Na≤1

K≤0.5

Fe≤0.5

Mg≤0.05

Cu≤0.05