Iron(III) nitrate nonahydrate

九水硝酸铁(III)

Cobalt(II) acetylacetonate hydrate

乙酰丙酮钴水合物

Cobalt(II) sulfide

硫化钴(II)

Nickel(II) fluoride, anhydrous

氟化镍

Nickel(II) Hydroxide

氢氧化镍

Nickel boride

硼化镍

Nickel rod

镍棒

Copper(II) sulfate, anhydrous

硫酸铜

Copper(II) Acetylacetonate

乙酰丙酮酸铜

Copper powder