199966

Aluminum oxide

activated, acidic, Brockmann I

• 동의어(들): Alumina
• Linear Formula: Al₂O₃
• CAS Number: 1344-28-1
• Molecular Weight: 101.96
• EC Number: 215-691-6
• MDL number: MFCD00003424
• UNSPSC 코드: 12352311
• eCl@ss: 38120402
• PubChem Substance ID: 329751965
• NACRES: SB.52

속성

• Grade: Brockmann I; activated; standard grade
• Agency: suitable for EPA 1613
• 형태: powder
• 제조업체/상표: CAMAG 504-C-I
• 기술: ion chromatography: suitable
• 불순물: <0.03% Fe₂O₃; <0.03% SiO₂; <0.4% Na₂O
• 입자 크기: 50-300 mesh
• 공극 크기: 58 Å pore size
• pH: 4.5±0.5 ( in H₂O)
• mp: 2040 °C (lit.)
• 음이온 미량물: chloride (Cl^-): ≤0.14 (mval/g)
• SMILES string: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• InChI key: TWNQGVIAIRXVLR-UHFFFAOYSA-N

설명

일반 설명

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

The mechanism of formation of protective scales of α-Al₂O₃ (aluminum oxide) 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.

애플리케이션

Aluminum oxide (Alumina) may be used for the removal of peroxides from the dehydration solvent (tetrahydrofuran, THF) in a protocol. Protocol involved the high resolution study of fine brain anatomy of fluorescently labeled mouse brains. It may be used in the fabrication of polycrystalline lithium iodide-Aluminum oxide solid electrolytes. The incorporation of aluminum oxide remarkably increased the conductivity of lithium iodide.

Aluminum oxide (acidic) can be used as an adsorbent for column chromatography. It may be used as an active surface for the acylation of aromatic ethers with carboxylic acids in the presence of trifluoroacetic anhydride under solvent-free conditions.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable