199974

Aluminum oxide

activated, neutral, Brockmann I

• Sinonimo/i: Alumina
• Formula condensata: Al₂O₃
• Numero CAS: 1344-28-1
• Peso molecolare: 101.96
• Numero CE: 215-691-6
• Numero MDL: MFCD00003424
• Codice UNSPSC: 12352311
• eCl@ss: 38120402
• ID PubChem: 329751966
• NACRES: SB.52

Proprietà

• Grado: Brockmann I; activated; standard grade
• Livello qualitativo: 100
• Forma fisica: powder
• Produttore/marchio commerciale: CAMAG 507-C-I
• tecniche: ion chromatography: suitable
• Impurezze: <0.03% Fe₂O₃; <0.03% SiO₂; <0.4% Na₂O
• Dimensione particelle: 40-160 μm
• Dimensione pori: 58 Å pore size
• pH: 7.0±0.5 ( in H₂O)
• Punto di fusione: 2040 °C (lit.)
• Stringa SMILE: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O; TWNQGVIAIRXVLR-UHFFFAOYSA-N

Descrizione

Descrizione generale

The mechanism of formation of protective scales of α-Al₂O₃ on surfaces of binary M-Al (M = Fe, Ni or Co) alloys at high temperatures has been studied. Activated aluminum oxides having different acidities and water concentrations (having Brockmann activity I-V) can easily detect various types of water (namely free water, pore water, and bound water) on the aluminum oxide present in soils.

Applicazioni

Aluminum oxide (Alumina, Al₂O₃) has been used in the preparation of one-step self-assembled double-helices of multiwalled carbon nanotubes (MWCNT) arrays (composed of Fe nanoparticles bound to SiO_x micro-particles).

Aluminum oxide (neutral) has been used in the preparation of alumina supported silver (Ag/Al₂O₃) catalyst suitable for selective catalytic reduction of nitrogen oxides (NOx) by hydrocarbons (HC-SCR).

Confezionamento

Brockmann aluminum oxides are suitable for column chromatography and adsorptive filtration.

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): nwg
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable