

Chemical Properties of Aluminium Oxide. 1. Reaction with sodium hydroxide. Aluminium oxide reacts with sodium hydroxide to produce sodium aluminate and water. This reaction takes place at a temperature of 900-1100°C. Salt and water are obtained in this reaction in which aluminium oxide acts as an acid. Al2O3 + 2NaOH → 2NaAlO2 + H2O.



Al2O3 is Corundum structured and crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Al3+ is bonded to six equivalent O2- atoms to form a mixture of corner, edge, and face-sharing AlO6 octahedra. The corner-sharing octahedra tilt angles range from 48–60°. There is three shorter (1.87 Å) and three longer (1.99 Å) Al–O bond …

















Word Equation. Aluminium + Dioxygen = Aluminum Oxide. Al + O2 = Al2O3 is a Synthesis reaction where four moles of Aluminium [Al] and three moles of Dioxygen [O 2] combine to form two moles of Aluminum Oxide [Al 2 O 3] Show Chemical Structure Image. Aluminum powder sprinkled on a flame + (temperature) → Aluminium lighted white solid form.













Aluminum oxide (Al 2 O 3, CAS number ), known as alumina, is one of the most frequent metal oxides used in industry due to its abundance in nature and low-cost production.Alpha (α), Beta (β) and gamma (ƴ) are the most well-known phase modifications of aluminum oxide. In nature, the most commonly occurring phase is α-Al 2 O 3 which is …
















