zinc oxide

zinc oxide Has the tinting strength and covering power and is the FaGuangJi preservatives and coating.
Znic oxide
Index Item
Index
Type I
Type II
Super Grade
Grade1
Qualified Grade
Super Grade
Grade1
Qualified Grade
Zinc oxide %≥
99.70
99.50
99.40
99.70
99.50
99.40
Metallic metals (as Zn) %≤
None
None
0.008
None
None
0.008
Lead oxide (as pb) %≤
0.037
0.05
0.14
-
-
-
Manganic oxide (as Mn) %≤
0.0001
0.0001
0.0003
-
-
-
Copper oxide (as Cu) %≤
0.0002
0.0004
0.0007
-
-
-
Insolubles in HCL solution%≤
0.006
0.008
0.05
-
-
-
Losses on ignition %≤
0.2
0.2
0.2
-
-
-
Screening residues (through 45µm mesh) %≤
0.10
0.15
0.20
0.10
0.15
0.20
Soluble matters in Water %≤
0.10
0.10
0.15
0.10
0.10
0.15
Volatile matters at 105°C %≤
0.3
0.4
0.5
0.3
0.4
0.5
Oilabsorption g/100g ≤
-
-
-
14
14
14
Colour (compared with standard specimen)
-
-
-
Similar
Few
Little
Colour killing ( Compared with standard specimen)
%≥
-
-
-
100
95
90