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One approach would be to reduce nickel oxide in a hydrogen stream.
Alternatively, one could oxidize NiS on an oxygen stream to get rid of the volatile sulfur.
An alternative approach would be to electrowin the metal from an acid solution, i.e. by electroplating.
If you required very high purity Ni, then zone refiningof a cylindrical sample will produce very pure metal.
[For example, high purity Tantalum, 99.999%, may be produced by this method.]
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Should the density of Al be the same for all Al samples?
The density of pure aluminium is the same for all samples.
Why water samples are pure?
Only refined water (by distillation, ion exchangers, reverse osmosis etc.) may be pure.
Can pure iron can be separated by a magnet?
Cobalt and nickel are also magnetic elements.
Why do you not find pure samples of highly reactive elements on the ground?
The reason is because they react with everything, and once they react with another element they are no longer a pure substance.
All samples of pure water have the same mass?
There is a thing called heavy water. It is pure water that has a deuterium in it known as D20 instead of H20. It is pure but does not have the same mass.
How you make pure samples of xenon?
Fractional distillation of air.
How do you make pure samples of neon?
you google it Fractional liquefaction of air.
How do you make pure samples of plutonium?
Pure plutonium is obtained as a result of the reaction of PuF4 with calcium, barium or lithium.
Is nickel a pure substance or a mixture?
Nickel is a chemical element, and as such, it is a pure substance.
What is the metal used to make a nickel?
A US nickel is an alloy of 25% nickel and 75% silver.Current Canadian nickels are made of plated steel. Older ones are made of pure nickel.
Is a nickel a mixture or pure substance?
Nickel is a chemical element; therefore, any object that contains only nickel is a pure substance.
How do you make pure samples of caclium?
The most straightforward way to make a pure sample of calcium is to electrolyze a molten calcium salt with an "inert" cathode such as platinum. Considerable care is required to prevent reaction of pure calcium with the ambient atmosphere.
How could you determine if a simple gold is pure?
compare the samples density with that of pure gold
How does elements combine to form elements why not compounds?
Elements are pure samples of only one type of atom. By definition, elements combing make a compound. You cannot have a pure combination of something.
What are string basses made from?
Usually from metals such as steel and nickel. Like pure steel, nickel wrapped steel, pure steel etc
Should the density of Al be the same for all Al samples?
The density of pure aluminium is the same for all samples.
Are there pure samples of alkali metals in the earth's crust?
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