Basic Zinc Carbonate

We are offering Basic Zinc Carbonate.
specifications
white or yellowish fine amorphous powder, or crystalline powder. odorless and tasteless.
properties:
white or yellowish fine amorphous powder, or crystalline powder. odorless and tasteless. the proportion is 4.42-4.45. soluble in acids, alkaline and ammonium salt solutions; insoluble in water. sp.gr.4.42-4.5; nontoxic.
application:
basic zinc carbonate is widely used not only in rubber, plastic, latex products as the foaming additives and colorant of rubber and plastics, vulcanizing agent and light stabilizer of transparent rubber, but also in the rayon, petroleum, and chemical fertilizer industries as the main material of the desulfurizer and the catalyst, the main material of zinc oxide and so on.
packing: 25kg/bag or as the client’s request
technical specification:
in conformity with hg/t2523-93
item index
super class the first class qualified class
zn dry %≥ 57.5 57 56.5
loss on ignition%≥ 25-28 25-30 25-30
pb %≤ 0.04 0.05 0.05
h2o%≤ 2.5 3.5 5.0
sulphate(so4) %≤ 0.6 0.8
size(pass through 75 mesh) % ≤ 95 94 93
cd %≤ 0.1.