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zinc chloride CAS:5263-05-2 Molecular formula: ZnCO3.2Zn(OH)2.H2O Molecular weight: 324.15 High purity, low heavy metal, competitive price for various grades of basic zinc carbonate 57.5%, 57%, 56.5%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.
Usage: In stock bedding is used for the preparation of balanced foodstuffs and particularly as an alimentary mineral addition in combating "Parakeratosis" of pigs, a disease due to a deficiency of zinc in the feed. It is used in pigments, ceramics and the manufacture of crepe and sponge, being particularly suitable when low pigmentation is desired. If has other uses in the paint industry and as an activator in the rubber industry.
Packing: In P.P. woven bags of 25kgs net each with P.E. liner inside or as per buyer's requirement
Item | High-class | First -class | Qualified | |
Appearance | White powder | |||
Main component (Zn) | ≥57.5 | ≥57.0 | ≥56.5 | |
Burn loss | 25.0-28.0 | 25.0-30.0 | 25.0-32.0 | |
Heavy metal (Count by Pb) Content | ≤0.04 | ≤0.05 | ≤0.05 | |
Water content | ≤2.5 | ≤3.5 | ≤5.0 | |
Sulfate (Count by SO4) | ≤0.60 | ≤0.80 | —— | |
Dgree (by 74um Slft net) | ≥95.0 | ≥94.0 | ≥93.0 | |
Cd Content | ≤0.10 | —— | —— | |
zinc carbonate