769290

Aluminum oxide

powder, ultra dry

• Synonym(s): Alumina
• Linear Formula: Al₂O₃
• CAS Number: 1344-28-1
• Molecular Weight: 101.96
• EC Number: 215-691-6
• MDL number: MFCD00003424
• UNSPSC Code: 12352311
• PubChem Substance ID: 329767437
• NACRES: NA.23

Properties

• Quality Level: 100
• form: powder
• surface area: 120-190 m²/g
• impurities: ≤0.5% substances extractable by water
• loss: ≤1.0% loss on ignition
• particle size: >0.063, coeff var ≥72%; <0.063 mm, coeff var ≤28%; >2 mm, coeff var ≤2%
• mp: 2040 °C (lit.)
• bulk density: 950‑1100 g/L
• anion traces: chloride (Cl^-): ≤0.015%; sulfate (SO₄^2-): ≤0.05%
• cation traces: As: ≤0.0005%; Fe: ≤0.02%
• SMILES string: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• InChI key: TWNQGVIAIRXVLR-UHFFFAOYSA-N

Description

Application

Owing to its high hardness, chemical stability and thermal conductivity, alumina finds applications as filler for metals and plastics. It also finds applications in paints, polisher and cosmetics.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable