199974

Oxyde d'aluminium

activated, neutral, Brockmann I

• Synonyme(s) : Alumina
• Formule linéaire : Al₂O₃
• Numéro CAS: 1344-28-1
• Poids moléculaire : 101.96
• Numéro CE : 215-691-6
• Numéro MDL: MFCD00003424
• Code UNSPSC : 12352311
• eCl@ss : 38120402
• ID de substance PubChem : 329751966
• Nomenclature NACRES : SB.52

Propriétés

• Qualité: Brockmann I; activated; standard grade
• Niveau de qualité: 100
• Forme: powder
• Fabricant/nom de marque: CAMAG 507-C-I
• Technique(s): ion chromatography: suitable
• Impuretés: <0.03% Fe₂O₃; <0.03% SiO₂; <0.4% Na₂O
• Taille des particules: 40-160 μm
• Dimension de pores: 58 Å pore size
• pH: 7.0±0.5 ( in H₂O)
• Pf: 2040 °C (lit.)
• Chaîne SMILES: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• Clé InChI: TWNQGVIAIRXVLR-UHFFFAOYSA-N

Description

Description générale

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.

Application

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).

Conditionnement

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

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): nwg
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable