What is aluminum foil substance, pure or mixture?

Index
What is aluminum foil substance, pure or mixture?
What is aluminum foil substance, pure or mixture?

aluminiumsheet > 03-23-2018, 06:52 AM

Generally aluminum foil is almost pure aluminum .. a metal. However Aluminum reacts with oxygen in air to form an aluminum oxide on the surfaces that are exposed to air.

Only reagent grade elements could be called ‘pure’ or 100%. These would be used for analytical purposes or where other elements or compounds could contaminate a process. Cooking food does not require pure metal.

Retail foil is apparently 92–99% pure.
RE: What is aluminum foil substance, pure or mixture?

haomeialu > 03-23-2018, 08:57 AM

aluminum metal (symbol Al, atomic # 13) is an element and therefore a pure substance. That said, if something is made out of aluminum (like aluminum foil) it is rarely pure aluminum and is typically an alloy composed of mostly aluminum with other metals. Alloys are used to improve the properties of the pure substance in various ways depending on the desired use.
RE: What is aluminum foil substance, pure or mixture?

askaluadmin > 03-23-2018, 08:58 AM

Well, assuming it's pure aluminium, since aluminium is an element it's "pure".
By way of a contrary example, bronze foil would be a mixture because bronze is an alloy of copper and tin.
Next Oldest Next Newest