Chrome oxide is an inorganic substance with the chemical formula Cr2O3. It is a small hexagonal crystal from light green to dark green. It turns brown when hot, and still turns green when cold. The crystals are extremely hard and stable, and there is no change even if hydrogen is injected under red heat. It is soluble in heated potassium bromate solution, slightly soluble in acids and alkalis, and almost insoluble in water, ethanol and acetone. There is also irritation molecular weight is 151.99, in hexagonal system, light green or dark green powder.
| Density | 5.21 g/cm3 |
| Moh's hardness | 8.5 ~ 9 |
| Melting point | 2265 °C |
| Refractive index | 2.5 |
| Boiling point | 3654 °C |
| Molecular weight | 151.99 |
| Color | Metallic luster, with the characteristic of magnetism great hiding powder feature |
| Stability
|
Stable to liqht, atmosphere, and corrosive qases (H2S, SO2, etc.), has excellent weather resistance, thermal stability |
Product Specification:
| Classification | EINECS NO. 215-160-9 | ACS NO. 1308-38-9 |
| Appearance | Light green or dark green powder | |
| Index | SA-1 | SA-2 |
| Cr2O3 | >99% | >99% |
| Water soluble substance | <0.3% | <0.3% |
| Moisture | <0.2% | <0.2% |
| Thermostability | 1100 | 1100 |
Chrome oxide is used to make abrasive materials, widely used in stainless steel, diamond, precision machine, etc. for polishing and abrasive. SA-2 (one of COG material) is used in stainless steel for no scratch polishing surface of large area, with high-precision. And it can be used for green cutting and grinding disc.
For further information, you can contact our Sales Engineer, or you can contact us directly or here.