Main content (as Zn), %, ≥ 55
Loss on ignition,% 25-32
Heavy metals, %, ≤ 0.2
Moisture, %, ≥ 5.0
sulfate,%-
Fineness (through 75um screen)%, ≥ 93
Cadmium %, ≤-
Nature White amorphous powder, odorless and tasteless. Insoluble in water and alcohol. Slightly soluble in ammonia. Soluble in dilute acid and sodium hydroxide. It reacts with 30% hydrogen peroxide (H2O2) to release carbon dioxide (CO2) to form peroxides. The relative density is 4.42--4.45. It can be heated at 250-500℃ for different time, and the fluorescence phenomenon can occur when it is cooled to room temperature. The thermal decomposition temperature of zinc carbonate is 350°C. Zinc carbonate emits some carbon dioxide at 90°C and decomposes completely at 350°C in 1 hour.
Use Basic zinc carbonate is used as light astringent and raw material for latex products. It is used to prepare calamine lotion, used as a skin protectant, and can also be used to produce rayon and catalytic desulfurizer.
Package Plastic woven bag, net weight 25kg.