CAS: 5970-47-8
HS code:2836999000
Product name: Zinc carbonate
Molecular formula: ZnCO3-2Zn(OH)2-H2O
Property: White fine amorphous powder.Odorless and tasteless. Relative density:4.42~4.45.Insoluble in water and alcohol. Slightly soluble in ammonia. Soluble in dilute acid and sodium hydroxide. Mixed with 30% hydrogen peroxide, release carbon dioxide, and form peroxides
Use: Used as a light astringent, prepared calamine, skin protection agents, rubber, latex products, raw materials and cementing agent in oil development.
Packing:25 kg/plastic bag
Indicator:HG/T2523-93
Indicator | Indicator(Technical grade) | ||
Excellent | First class | Qualified | |
Appearance |
White powder | ||
Amount(Zn,in dry basis ) ≥% |
57.5 | 57.0 | 56.5 |
Loss on ignition % |
25-28 | 25-30 | 25-32 |
Heavy metal ≤% |
0.04 | 0.05 | 0.05 |
Moisture ≤% |
2.5 | 3.5 | 5.0 |
Sulphates ≤% |
0.6 | 0.8 | |
Fineness(75um sieve ) ≥% |
95.0 | 94.0 | 93.0 |
Cadmium ≤% |
0.1 | - | - |