Alkali metal amalgam, liquid 4.3 UN1389 I 4.3 A2, A3, N34 None 201 244 Forbidden 1L D 40 Alkali metal amalgam, solid 4.3 UN1389 I 4.3 IB4, IP1, N40 None 211 242 Forbidden 15 kg D Alkali metal amides 4.3 UN1390 II 4.3 A6, A7, A8, A19, A20, IB7, IP2 or