He paʻakai ʻo Cupric sulfate ma ka mālama ʻana i ka ʻokikene kīʻaha me ka waikawa sulfuric.ʻO kēia ke ʻano o nā kristal polū nui a me ʻelima mau mole wai (CuSO4∙5H2O) a ʻike ʻia hoʻi he vitriol polū.Hana ʻia ka paʻakai anhydrous ma ka hoʻomehana ʻana i ka hydrate i 150 °C (300 °F).