Reagent zinc oxide is a kind of zinc oxide product with high tech content. It carries out HG/T2890-1997 standard. And it has the feature of low metal impurity; widely used in reagent and battery fields.
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Item
|
Index
|
|
Zinc oxide content%≥
|
99.0
|
|
clarity test
|
qualified
|
|
insoluble in dilute sulphuric acid%≤
|
0.01
|
|
free alkali
|
qualified
|
|
chloride(Cl)%≤
|
0.001
|
|
sulfur compound(SO4)%≤
|
0.01
|
|
nitrate(NO3)%≤
|
0.003
|
|
Mn%≤
|
0.0005
|
|
Fe%≤
|
0.0005
|
|
As%≤
|
0.00005
|
|
Pb%≤
|
0.005
|
|
Potassium perman-ganate(O)%≤
|
0.002
|
|
Hydrogen sulfide not precipitate(sulfate)%≤
|
0.10
|
|
