8011 is a well known alloy of aluminium foil for food packaging, however food packaging aluminium foil may be of just about all foil alloys except 1235, consisting of 8021, 8079, 1060, 1070, 3003, 3004, 5052, 1100 and 8006. https://hw-alu.com/products/5052-aluminum-foil.html