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


Uses:For paint,printing ink,rubber,cable, medicines,electronics ,papermaking ,enamel,match,cosmetic and other chemical industry application.
Packing: 25kg, 50kg, big sack bag or as required by the customer.