Zinc Oxide--Dalian ruiyuan power Co., Ltd.

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
Item	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

Email：rydl3@dlrydl.com