sell zinc carbonate with best quality used as transparent activator in rubber, feed additives; sulfur absorber in petroleum

basic zinc carbonate

basic zinc carbonate

transparent activator in rubber, feed additives; sulfur absorber in petroleum industries; cosmetics; pharmaceuticals; zinc Salts

Propertieswhite 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 inthe diluted acid and the sodium hydroxide.

Quality Standard

conform to the chemical trade standard of the People's Republic of China HG/T2523-93

Items	Index
	Best quality product	First quality product
Main content(Zn dry basis),% ≥	57.5	57.0
Ignition loss	25.0-28.0	25.0-30.0
Heavy metal(Pb) content,% ≤	0.04	0.05
Moisture, ≤	2.5	3.5
Sulfate(SO4 ),% ≤	0.60	0.80
Fineness through the 75um mesh,≥	95.0	94.0
Cadmium(Cd),≤	0.10

sell zinc carbonate sulfuric acid