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酸化(III)
Wikipedia definition
1. Nickel(III) oxideNickel(III) oxide (Ni2O3) has been referred to in the literature but is not a well characterised compound. The substance black nickel oxide is sometimes described as being Ni2O3 however the composition quoted by suppliers has a nickel content of around 77% by weight whereas Ni2O3 would have 70.98% Ni by weight, and may be non-stoichiometric NiO. There are references in the literature to traces of Ni2O3 on nickel surfaces, and as intermediates in nickel oxidation, e.g. .
Read “Nickel(III) oxide” on English Wikipedia
Read “酸化ニッケル(III)” on Japanese Wikipedia
Read “Nickel(III) oxide” on DBpedia

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