氧化铝

 

ALPHA-ALUMINA

 

SYNONYM: α-ALUMINA

 

FORMULA: Al2O3

 

M. W.: 102

 

GRADE: MIDDLE SODA

 

DESCRIPTION:  DENSITY IS ABOUT 3.93g/cm3

 

SPECIFICATIONS:

ITEM

SUPER

FIRST

SECOND

Al2O3 (%MIN.)

99

98

97

SiO2 (%MAX.)

0.06

0.10

0.15

Fe2O3 (%MAX.)

0.04

0.05

0.10

B2O5 (%MAX.)

0.04

0.20

0.40

Na2O+K2O (%MAX.)

0.30

0.40

0.60

L.O.I. (%MAX.)

0.20

0.20

0.40

α-Al2O3 (%MIN.)

85-95

85-95

80

 

USES: WIDELY USED AS RAW MATERIAL OF ALUMINUIUM COMPOUND, ANTIBURNED FILLER OF PLASTIC, RUBBER AND SO ON.