Iron powder

铁粉

Iron(II) tetrafluoroborate

四氟硼化铁

Stainless steel foil, type 304

氧化钴, Cobalt(II,III) oxide

钴粉, Cobalt powder

Nickel(II) dimethylglyoxime

丁二酮肟镍

Nickel(II) perchlorate hexahydrate

六水合高氯酸镍

Nickel wire

镍丝(0.5mm dia)

Nickel powder

镍粉

Copper(I) oxide

氧化亚铜