199974

Óxido de alumínio

activated, neutral, Brockmann I

• Sinônimo(s): Alumina
• Fórmula linear: Al₂O₃
• Número CAS: 1344-28-1
• Peso molecular: 101.96
• Número CE: 215-691-6
• Número MDL: MFCD00003424
• Código UNSPSC: 12352311
• eCl@ss: 38120402
• ID de substância PubChem: 329751966
• NACRES: SB.52

Propriedades

• grau: Brockmann I; activated; standard grade
• Nível de qualidade: 100
• forma: powder
• fabricante/nome comercial: CAMAG 507-C-I
• técnica(s): ion chromatography: suitable
• Impurezas: <0.03% Fe₂O₃; <0.03% SiO₂; <0.4% Na₂O
• tamanho de partícula: 40-160 μm
• tamanho de poro: 58 Å pore size
• pH: 7.0±0.5 ( in H₂O)
• pf: 2040 °C (lit.)
• cadeia de caracteres SMILES: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• chave InChI: TWNQGVIAIRXVLR-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Aplicação

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).

Embalagem

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

Informações de segurança

• Código de classe de armazenamento: 13 - Non Combustible Solids
• Classe de risco de água (WGK): nwg
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable