Aluminum oxide is on the surface of any aluminum metal, however you probably want more than that. There are three ways to produce the aluminum-oxide.
1. You can melt the aluminum in a furnace. There will be a thin film on top of the molten metal, that is the aluninum-oxide. You can skim this off with anything of a melting point higher than aluminum. This method leaves you with messy gobs of aluminum oxide mixed with small amounts of aluminum.
2. You can mix up a batch of thermite and light it. Aluminum oxide is a by-product of the reaction. However, this is very dangerous and I don't know how you could collect the aluminum-oxide(it is probably mixed with the iron).
3. (My favorite)You grind the aluminum into powder, probably with a bench grinder, and burn it! You get a container that won't burn and set the container with the aluminum in it in a fire(big fire)! The aluminum will burn/oxidize and you are left with a container of aluminum-oxide!
Have fun be safe, oh and make some rubies while you're at it!!!
OR
#4. use some red devel drain cleaner (* 99% Lye *) and mix in a small cup of hot water than place an aluminum bar into it.. it will produce ALLOT of heat, as the reaction is endothermic, as well as lots of hydrogen and FOAM. use a little WD40 in the water to reduce foam.. after the reaction has finished, the aluminum will be converted to Aluminum OXIDE and lye.
allow the mix of water/lye/aluminum oxide to evaporate in a tin. then add a little cutting oil to turn it into a paste.
when adding oil to lye, it turns it into SOAP.. so you'll end up with a polishing compound that will also cleaning agent.. be carefull LYE will cause burns from both the chemical and heat produced while the aluminum is converted to aluminum oxide. so use protective gear, face shield, gloves, and aprin.
enjoy.
Aluminium oxide is Al2O3. +3 for each Al and -2 for each O.
The balanced equation for aluminum reacting with iron(II) oxide to produce aluminum oxide and iron is: 2Al + FeO -> Al2O3 + 2Fe.
The balanced equation for the reaction between aluminum and copper oxide is: 2Al + 3CuO → 3Cu + Al2O3. This reaction produces copper and aluminum oxide.
The balanced equation for the decomposition of aluminum oxide is: 2Al2O3(s) → 4Al(s) + 3O2(g)
The balanced equation for the reaction between aluminum and copper oxide is: 2Al + 3CuO -> 3Cu + Al2O3.
Aluminium oxide is Al2O3. +3 for each Al and -2 for each O.
The balanced equation for aluminum reacting with iron(II) oxide to produce aluminum oxide and iron is: 2Al + FeO -> Al2O3 + 2Fe.
The balanced equation for the reaction between aluminum and copper oxide is: 2Al + 3CuO → 3Cu + Al2O3. This reaction produces copper and aluminum oxide.
The balanced equation for the decomposition of aluminum oxide is: 2Al2O3(s) → 4Al(s) + 3O2(g)
The balanced equation for the reaction between aluminum and copper oxide is: 2Al + 3CuO -> 3Cu + Al2O3.
From '0' to '3'. Elemental aluminium is in oxidation state zero (0). When it combines with oxygen to form aluminium oxide , it 'looses' its three outermost electrons to oxygen. Hence aluminium metal becomes the aluminium cation (Al^3+), which is oxidation state '3'.
The word equation for aluminum forming its protective layer is: Aluminum + Oxygen → Aluminum oxide.
The chemical equation 2Al2O3 represents the reaction of two aluminum atoms with three oxygen atoms to form two molecules of aluminum oxide. This equation shows that for every two moles of aluminum, three moles of oxygen are required to form two moles of aluminum oxide.
The unbalanced equation for the reaction of barium oxide (BaO), calcium oxide (CaO), and strontium oxide (SrO) with aluminum (Al) is: BaO + CaO + SrO + Al -> Ba + Ca + Sr + Al2O3
The balanced equation for the reaction between aluminum and iron (III) oxide to form aluminum oxide and iron is: 2Al + Fe2O3 → Al2O3 + 2Fe
In the reaction of aluminum with oxygen to form aluminum oxide (Al + O2 -> Al2O3), the oxidation number of aluminum changes from 0 to +3, while the oxidation number of oxygen changes from 0 to -2. This indicates that aluminum is undergoing oxidation, while oxygen is undergoing reduction in the reaction.
The reaction equation for the oxidation of acetylene (C2H2) with nitrous oxide (N2O) is: 2C2H2 + N2O -> 2CO2 + H2O + N2