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Nickel(III) oxide

 

 
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Nickel(III) oxide
 
 
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Nickel(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
Nickel(II) oxide

Nickel oxide is the chemical compound with the formula NickelOxygen. It is notable as being the only well characterised oxide of nickel although there have been many reports of others ....
.
There are references in the literature to traces of Ni2O3 on nickel surfaces, and as intermediates in nickel oxidation, e.g.






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Nickel(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
Nickel(II) oxide

Nickel oxide is the chemical compound with the formula NickelOxygen. It is notable as being the only well characterised oxide of nickel although there have been many reports of others ....
.
There are references in the literature to traces of Ni2O3 on nickel surfaces, and as intermediates in nickel oxidation, e.g. .

Nickel oxide hydroxide

The related nickel oxide hydroxide (NiOOH) can be prepared by reaction of nickel(II) chloride
Nickel(II) chloride

Nickel chloride , is the chemical compound NiCl2. The anhydrous salt is yellow, but the more familiar Water of crystallization NiCl2?6H2O is green....
 and sodium hypochlorite
Sodium hypochlorite

Sodium hypochlorite is a chemical compound with the chemical formula NaClO. Sodium hypochlorite solution, commonly known as bleach, is frequently used as a disinfectant or a bleaching agent....
 in water and used as an oxidizing agent
Oxidizing agent

An oxidizing agent can be defined as either:#a chemical compound that readily transfers oxygen atoms, or#a substance that gains electrons in a redox chemical reaction...
. In one modificationthe compound is used in a catalytic amount with bleach in stoichometric amount in the oxidation of benzyl alcohol
Benzyl alcohol

Benzyl alcohol is an organic compound with the formula C6H5CH2OH. The benzyl group is often abbreviated "Bn", thus benzyl alcohol is denoted as BnOH....
 to benzoic acid
Benzoic acid

Benzoic acid, C7H6O2 , is a colorless crystalline solid and the simplest aromatic carboxylic acid. The name derived from gum benzoin, which was for a long time the only source for benzoic acid....
:

or in double oxidation of 3-butenoicid to fumaric acid
Fumaric acid

Fumaric acid is the chemical compound with the formula HO2CCH=CHCO2H. This white crystalline compound is one of two isomeric unsaturated dicarboxylic acids, the other being maleic acid wherein the carboxylic acid groups are cis....
:


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