11028

Óxido de alúmina

puriss., ≥98% Al₂O₃ basis

• Sinónimos: Alúmina
• Fórmula lineal: Al₂O₃
• Número de CAS: 1344-28-1
• Peso molecular: 101.96
• Número CE: 215-691-6
• Número MDL: MFCD00003424
• Código UNSPSC: 12352311
• eCl@ss: 38120402
• ID de la sustancia en PubChem: 329749286

Propiedades

• grado: puriss.
• Ensayo: ≥98% Al₂O₃ basis
• Formulario: solid
• impurezas: ≤0.005% heavy metals (as Pb); ≤0.2% alkalis (as Na₂O)
• pérdida: ≤0.5% loss on ignition, 1000 °C, 2 h
• mp: 2040 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤50 mg/kg; silicate (as SiO₂): ≤1000 mg/kg; sulfate (SO₄^2-): ≤500 mg/kg
• trazas de catión: Fe: ≤300 mg/kg
• cadena SMILES: O=[Al]O[Al]=O
• InChI: 1S/2Al.3O
• Clave InChI: TWNQGVIAIRXVLR-UHFFFAOYSA-N

Descripción

Descripción general

Aluminum oxide (Alumina, Al₂O₃) is commonly used as adsorbent. Formation of protective α-Al₂O₃ scales on the alloys at high temperatures has been studied.[1] Polycrystalline Al₂O₃ has been employed to investigate the self-diffusion coefficient of aluminum in the temperature range of 1670°-1905°C.[2] Aluminium oxide can either be obtained via thermal conversion of aluminium hydroxide at temperatures >1200^οC or via combustion of aluminium.[3] Aluminium oxide nanoparticles can behave like safe adjuvants and carriers for eliciting antibodies from small molecules called haptens.[4]

Aplicación

Aluminum oxide (Alumina) may be employed for the selective adsorption of the catecholamines during their determination in diverse biological matrices.[5] 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.[6] Aluminum oxide (activity II-III, according to the Brockmann scale) has been used for the chromatographic purifications.[2]

Información de seguridad

• Código de clase de almacenamiento: 13 - Non Combustible Solids
• Clase de riesgo para el agua (WGK): nwg
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable