What is the composition of aluminum foils?

Aluminum foil is primarily composed of aluminum, a lightweight and malleable metal. It is made from thin sheets of aluminum that have been rolled or pressed to a very thin gauge. Pure aluminum is often alloyed with small amounts of other elements to improve its strength and resistance to corrosion. Common alloying elements include manganese, magnesium, silicon, copper, and zinc. These alloys can enhance the foil's properties for specific applications, such as food packaging or industrial uses. The composition of aluminum foil can vary depending on its intended use, but it is predominantly aluminum.