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Contact
Possehl Erzkontor GmbH & Co. KG
Beckergrube 38-52
23552 Lübeck
| Phone: | +49 - (0) 451 - 148 0 |
| Fax: | +49 - (0) 451 - 148 355 |
| Mineralogy: | MnO2 |
|---|---|
| Chemical analysis: | c. 50 – 54% Mn, refers to c. 75 – 82% MnO2 |
| Water soluble fraction: | nearly insoluble |
| Acid solubility: | insoluble in cold nitric and sulfuric acid |
| Colour: | dark brown to black |
| Particle shape: | powdery, earthy |
| Specific weight: | c. 5,0 g/cm3 |
| Specific gravity: | c. 2,3 g/cm3 |
| Melting point: | c. 535 °C |
| Grain size: |
Standard grain sizes: 0 - 3 mm and 2- 6 mm 0,35 - 0,85 mm and 0,85 – 1,5 mm < 45 µm and < 75 µm Special grain sizes on request |
