13473-05-7 137736-93-7 24494-51-7 50938-66-4 7440-37-1 75714-55-5 ARGON Argon, compressed [UN1006] [Nonflammable gas] Argon, refrigerated liquid (cryogenic liquid) [UN1951] [Nonflammable gas] Argon-40 EINECS 231-147-0 UN1006 UN1951