Grade

Sb₂O₃ 99.90

Sb₂O₃ 99.80

Sb₂O₃ 99.50

Sb₂O₃ 99.00

Chemical

Composition

(%)

Sb₂O₃    ≥

99.90

99.80

99.50

90.00

Impurity

(≤)

As

0.0040

0.0450

0.0450

0.150

Pb

0.0090

0.0740

0.0930

0.186

Fe

0.0030

0.0035

0.0042

-

Cu

0.0015

0.0020

0.0025

-

Se

0.0040

0.0040

0.0050

-

Bi

0.0010

0.0020

0.0020

-

Cd

0.0005

0.0010

0.0015

-

Physical

Property

Color (Hunter) L

 (%≥)

97

93

93

91

Average Particle

Size (/μm)

0.0~0.3

0.3~0.9

0.9~1.6

0.3~0.9

0.9~1.6

1.6~2.5

0.3~0.9

0.9~1.6

1.6~2.5

-

Crystal Structure

    (%≥)

95

90

90

-

Transmission in

MEG (%≥)

97

-

-

-