中文
High-Quality Phosphating Grade Manganese Carbonate from China Leading Suppliers and Factory
Molecular formula: MnCO3 | Molecular weight: 114.95 | CAS number: 598-62-9
Appearance: Light pink to light brown powder, in the form of rose colored triangular diamond crystals or amorphous powder.
Solubility: Almost insoluble in water, slightly soluble in carbonic acid, insoluble in alcohols and liquid ammonia, soluble in dilute inorganic acids; Dissolved in phosphoric acid solution, clear and transparent, without precipitation.
Stability: Stable in dry air, prone to oxidation and discoloration in humid environments; Thermal decomposition generates manganese oxide and carbon dioxide, which undergo hydrolysis/reaction under boiling water or strong alkaline conditions.
| Items | Specifications |
|---|---|
| Appearance | Light pink to light brown powder |
| Mn Content (%) | ≥44.0 |
| Sulfate Content (%) | ≤0.50 |
| Chloride Content (%) | ≤0.05 |
| Heavy Metals (as Pb, %) | ≤0.05 |
| Iron (Fe) Content (%) | ≤0.05 |
| Nitrate Insoluble Matter (%) | ≤0.10 |
| Phosphoric Acid Solubility Test | Clear solution without precipitate |
Core Application
Metal surface phosphating treatment: Key raw material for manganese based phosphating solution, generating dense manganese based phosphate film. It significantly improves corrosion resistance, wear resistance, and paint film adhesion.
Widely used in: Automotive gears, fasteners, bearings, mechanical components, etc.
Auxiliary Uses
High-end ceramic glazes, electronic grade manganese salt precursors, alloy additives, etc.
Packaging: Woven bags lined with polyethylene plastic bags, net weight 25kg per bag. Double-layer moisture-proof sealed packaging available.
Storage: Store in a cool, ventilated and dry warehouse. Keep away from moisture, light and oxidation. Avoid acidic materials and dust contamination.
Transportation: Protect from rain and direct sunlight. Handle with care. Moisture will directly affect the phosphating performance.
Fire Control: Use water, sand or fire extinguishers for fire fighting.