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Manganese Carbonate
- Origin
- : China
- CAS Number
- : 598-62-9
- HS Code
- : 2836.99.90
Basic Info
- IUPAC Name
- : manganese(2+) carbonate
- Molecular Formula
- : MnCO3
- Molecular Weight (g/mol)
- : 114.9500
- Synonyms & Trade Names
- : Manganese carbonate; Manganese(II) carbonate; Dialingite
- Purity / Assay (%)
- : 45% Mn min
- Grade / Quality Level
- : Technical Grade
- Physical Form
- : Solid
- Concentration
- : Pure substance
- Appearance / Color
- : White to off-white solid
- Odor
- : Odorless
- Density (g/cm³)
- : 3.7000
- Solubility in Water
- : Slightly soluble
- Signal Word
- : Warning
- GHS Hazard Class
- : Skin sensitizer; Reproductive hazard
- H-Statements
- : H317|H361
- P-Statements
- : P261|P272|P280|P308+P313
- REACH Status
- : Registered
- Drug Precursor Status
- : Non-precursor
- Storage Class (GHS)
- : 13
- Storage Conditions
- : Cool, dry place
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Brief Overview
Manganese carbonate is a natural occurring inorganic chemical compound from the mineral Rhdochrosite with the chemical formula of MnCO3. Manganese carbonate is insoluble in water and most of the carbonates solution. Manganese carbonate is an essential compound for aerobic life and it is not considered as toxic chemical compound.
Manufacturing Process
Manufacturing technique of high-purity manganese carbonate through ammonium salt circulating method comprises the following steps:
1. Adopting poor-manganese ore to recycle artificial Mn(OH)2 or high grade other manganese ore; reducing and sintering to obtain MnO and condensed ammonium sulfate; evaporating NH3 gas out of tower; meeting cold water to recycle the regenerative ammonia; reacting with recycled CO2 to obtain regenerative ammonium carbonate; filtering slag to obtain manganese liquid;
2. Heating manganese sulfate liquid after purifying; obtaining the crystal; dissolving into the water; proceeding ion exchange to purify to obtain high-purity manganese sulfate liquid;
3. Making condensed high-purity ammonium carbonate solution;
4. Pumping two high-purity liquid into double-circulating metathetical sediment; obtaining high-purity MnCO3 crystal;
5. Recycling mother water; condensing; obtaining the regenerative condensed ammonium sulfate liquid; circulating;
6. Adopting ammonium chloride and ammonium nitrate to replace ammonium sulfate.