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SECTION
PRODUCTS
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Zinc Oxide
Purpose：
relative molecular mass MW（molecular weight）：81.38（press the year of 2001 international relative atomic mass）
appearance：white or yellow powder
use：mainly use for produce preparation electronic material、rubber、coating、electronic ceramics、cosmetic、chemical fiber、catalystetc.
Description
|
Item |
index |
|
|
Ⅰ |
Ⅱ |
|
|
（ZnO）w/% ≥ |
99.0 |
97 |
|
（Pb）w/% ≤ |
0.001 |
0.001 |
|
（Mn）w/% ≤ |
0.001 |
0.001 |
|
（Cu）w/% ≤ |
0.0005 |
0.0005 |
|
（Cd）w/% ≤ |
0.0015 |
0.005 |
|
（Hg）w/% ≤ |
0.0001 |
— |
|
（As）w/% ≤ |
0.0003 |
— |
|
105℃volatile matterw/% ≤ |
0.5 |
0.5 |
|
Hydrotrope w/% ≤ |
0.10 |
0.10 |
|
Insoluble matter in hydrochloric acid w/% ≤ |
0.02 |
0.02 |
|
Loss on ignitionw/% ≤ |
— |
2 |
|
Mean grain size μm ≤ |
1 |
1 |
|
Specific surface aream2/g ≥ |
15 |
15 |