Iron powder

铁粉

Iron(II,III) oxide, black (Magnetite)

四氧化三铁/黑色氧化铁

Iron(II) oxalate dihydrate

草酸亚铁二水合物

Iron(III) trifluoroacetylacetonate

三氟乙酰丙酮铁

Stainless steel foil, type 304

Cobalt(II) acetate tetrahydrate

四水合乙酸钴

Cobalt(II) phosphate hydrate

磷酸钴

Cobalt(II) perchlorate hexahydrate

六水高氯酸钴

Cobalt(II) thiocyanate

硫氰酸钴(II)

Hexaamminenickel(II) iodide

碘化六氨合镍(II)