Molecular formula:ZnO
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.
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 |
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