Aluminum oxide CAS 1344-28-1

Product Name: Aluminum oxide
Synonyms: aluminum oxide without fluorescence;aluminum oxide, polishing compound, 2oz;ALUMINA,ACTIVATED,CHROMATOGRAPHICGRADE;ALUMINA,ADSORBENTFORGC;ALUMINUMOXIDE,ACTIVATED,BASIC,BROCKMANNI;ALUMINUMOXIDE,ACTIVATED,WEAKLYACIDIC,BROCKMANNI;ALUMINUMOXIDE,POWDER,PRACTICAL;ALUMINUMOXIDE,POWDER,REAGENT
CAS: 1344-28-1
MF: Al2O3
MW: 101.96
EINECS: 215-691-6
Product Categories: Industrial/Fine Chemicals;Inorganics;Nanopowders and Nanoparticle Dispersions;New Products for Materials Research and Engineering;Oxides;Biocompatible CeramicsMaterials Science;Biocompatible/Biodegradable Materials;metal oxide;nano structured metal oxide;metals scavenging agent;13: Al;Aluminum;and Other Ceramics;Biocompatible Ceramics;Biomaterials;Materials Science;Metal and Ceramic Science;Nanoparticles: Oxides;Nanopowders and Nanoparticle Dispersions;Nitrides;mining;Alumina&Aluminum Hydroxide TLC Adsorbents;Bulk Adsorbents for TLC;Thin Layer Chromatography (TLC);13: Al;AluminumMaterials Science;NanomaterialsMaterials Science;Metal and Ceramic Science;Nanomaterials;Nanoparticles: Oxides, Nitrides, and Other CeramicsNanomaterials
Melting point 2040 °C(lit.)
Boiling point 2980°C
density 3.97
vapor pressure 17 mm Hg ( 20 °C)
refractive index 1.765
Fp 2980°C
storage temp. -20°C
solubility Miscible with ethanol.
form powder
color White to pink
Specific Gravity 3.97
PH 7.0±0.5 ( in H2O)
Water Solubility INSOLUBLE
Uses Alumina is a white crystalline substance that resembles salt. Approximately 90% of all alumina is used for making aluminum, with the remainder used for abrasives and ceramics.
Uses Occurs in nature in abundance; the principal forms are bauxites and laterites. The mineral corundum is used to produce precious gems, such as ruby and sapphire. Activated aluminas are used extensively as adsorbents because of their affinity for water and other polar molecules; and as catalysts because of their large surface area and appropriate pore sturcture. As adsorbents, they are used for drying gases and liquids; and in adsorption chromatography. Catalytic properties may be attributed to the presence of surface active sites (primarily OH– , O2– , and Al3+ ions). Such catalytic applications include sulfur recovery from H2S (Clauss catalysis); dehydration of alcohols, isomerization of olefins; and as a catalyst support in petroleum refining.