Zinc Carbonate

We are offering zinc carbonate.
Specifications
1.zinc carbonate:znco3.2zn (oh)2.h2o; 2. Producer; 3.iso9001:2000 listed 4.marketing ratio: domestic 30%, abroad 70%
2.product detail:
zinc carbonate
molecular formula: znco3.2zn(oh)2.h2o
molecular weight: 324.15
chemical industry standard of people's republic of china hgt2523-93
items
index
high-class
first-class
qualified
zn % ≥
57.5
57.0
56.5
loss on dry
25.0-28.0
25.0-30.0
25.0-32.0
pb content % ≤
0.04
0.05
0.05
moisture ≤
2.5
3.5
5.0
so4 % ≤
0.60
0.80
-
fineness through 75 um screen ≥
95.0
94.0
93.0
cd content % ≤
0.10
-
-