Основной карбонат цинка

zinc carbonate basic used as corroxion inhibitor and desulpharization agent in oil explotiation,activator and desulphurization agent in chemical fertilizer production aslo widely used in paint and other chemical industry and ,rubber industires. 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 in the diluted acid and the sodium hydroxide. Quality StandardITEMSINDEXHigh-ClassFirst-ClassQualifiedZn % ≥57.557.056.5Loss on dry25.0-28.025.0-30.025.0-32.0Pb content % ≤0.040.050.05Moisture ≤2.53.55.0So4 % ≤0.600.80-Fineness through 75 um Screen ≥95.094.093.0Cd content % ≤0.10--advantage: products quality best ,low content of heavy metal,best package in China,lowest price on the basis of good quality main market: Iran ,indonesia ,The United Arab Emirates Russia ,Brazil Greece,Italy ,South africa.Canada ect