Zinc Carbonate

We are offering 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 - -
properties: white or yellowish fine amorphous powder, smell-less, tasteless. The proportion is 4.42-4.45, does not dissolve in water and alcohol, slightly soluble in ammonia, can dissolve in the diluted acid and the sodium hydroxide.
use: used as the light apocrustic and the latex products raw material.can prepare calamine and sued as the skin protecting agent, also may use in the rayon, petroleum and the chemical fertilizer industries as the main material of the desulfurizer and the catalyst.
on the rubber product, the paint, the medicine and other chemical products, it is also widely applied.
package: pp woven bags with inner pe bags
our main markets: iran, india, indonesia, russia, brazil, usa, greece, italy, south africa, colombia, canada, etc.