Product identity
- Chemical name
- Aluminium oxide, Al₂O₃
- CAS number
- 1344-28-1
- HS code
- 2818.20
- Packaging
- 25 kg bag · bulk bag
- Availability
- To order, FCL
- Origin
- India · China
Technical mineral
Alumina
Calcined aluminium oxide, an extremely hard and thermally stable compound used where abrasion resistance and high service temperature are the controlling requirements. Supplied in standard calcined and reactive grades to the purity and particle size required.
Grades supplied
| Calcined alumina | Standard grade | Standard |
| Reactive alumina | Fine grade | Micronized |
Typical properties
| Property | Value | Method |
|---|---|---|
| Purity, Al₂O₃ | ≥ 99.0 % | Typical |
| Na₂O content | ≤ 0.40 % | Typical |
| Hardness | Mohs 9.0 | — |
| Melting point | 2,072 °C | — |
| Loss on ignition | ≤ 0.5 % | Typical |
Standard grades
- Industrial abrasives
- High-temperature refractories
- Technical ceramics
- Polishing and lapping media
Values are typical and are confirmed on the certificate of analysis supplied with each lot. They do not constitute a specification unless agreed in writing.