199974

Aluminum oxide

activated, neutral, Brockmann I

• Szinonimák: Alumina
• Lineáris képlet: Al₂O₃
• CAS-szám: 1344-28-1
• Molekulatömeg: 101.96
• EC-szám: 215-691-6
• MDL-szám: MFCD00003424
• UNSPSC kód: 12352311
• eCl@ss: 38120402
• PubChem Substance ID: 329751966
• NACRES: SB.52

Tulajdonságok

• grade: Brockmann I; activated; standard grade
• Minőségi szint: 100
• Forma: powder
• gyártó/kereskedő neve: CAMAG 507-C-I
• technika/technikák: ion chromatography: suitable
• szennyeződések: <0.03% Fe₂O₃; <0.03% SiO₂; <0.4% Na₂O
• részecskeméret: 40-160 μm
• pórusméret: 58 Å pore size
• pH: 7.0±0.5 ( in H₂O)
• mp: 2040 °C (lit.)
• SMILES string: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• Nemzetközi kémiai azonosító kulcs: TWNQGVIAIRXVLR-UHFFFAOYSA-N

Leírás

Általános leírás

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.

Alkalmazás

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).

Kiszerelés

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

Biztonsági adatok

• Tárolási osztály kódja: 13 - Non Combustible Solids
• WGK: nwg
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable