The only materials i can use is iodine, water, HCl, magnet, and pH paper. How do you identify aluminum with that?
To start with, are you refering to aluminum as metal, an aluminum compound, or a solution with aluminum present as ions? If it is metaallic aluminum, it won't stick to a magnet, and it will react with HCl, however this isn't sufficient to definately say it is aluminum, it would be better to get a density, melting point, etc.
