How can I prepare pure NiO oxide from Ni2O3 black nickle oxide??

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Julius Pavlov

You should heat the fresh Ni2O3 (which is a hydrate) at 250-350oC.

Kavitha Karuppiah

Thank you Julius Pavlov .I am trying it.

Djaafar Zemali

Note that all minerals and their oxides have physical properties, chemistry and methods of preparation. For this you get references in mineral Chemists or a specialist in this area

Janakiram Vangada

Dose the Black Nickel Oxide get converted to green after heating to 250-350 C ? Is there any approach for converting black nickel oxide to green. please advise.