Erbium(III) oxide

氧化铒

Erbium foil

Thulium powder

Ytterbium(III) Oxide

氧化镱

Tantalum(V) oxide

氧化钽

Tungsten(VI) oxide

三氧化钨

Tungsten wire

七氧化二铼, Rhenium(VII) oxide

Iridium(IV) chloride, hydrate

水合四氯化铱

氯化金, Gold(III) chloride