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Topic: Difference between 99.6% white VS brown-red cerium oxide powder?  (Read 16951 times)

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Offline xchcui

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Re: Difference between 99.6% white VS brown-red cerium oxide powder?
« Reply #15 on: October 27, 2016, 09:59:39 AM »
Quote from: AWK on October 25, 2016, 10:42:37 AM
Not only impurity! - size of particles
https://www.alibaba.com/product-detail/Automobile-rearview-mirrors-CeO2-Rare-Earth_60201386585.html
and oxygen vacansies (up to black)
So,what are you saying?
Are you saying that the missing of oxygen atoms in the
cerium oxide lattice may cause the cerium oxide to change colors?
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Offline AWK

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Re: Difference between 99.6% white VS brown-red cerium oxide powder?
« Reply #16 on: October 27, 2016, 12:18:56 PM »
Read wikipedia: cerium(IV) oxide - Structure and defect behavior
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AWK

Offline xchcui

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Re: Difference between 99.6% white VS brown-red cerium oxide powder?
« Reply #17 on: October 27, 2016, 02:59:57 PM »
I must say that this is the first thread that you didn't help me at all.But i,still,don't angry ;)
After all,you were very helpful at my other threads.
But i think i should stop here.too much posts with no progress.
I don't believe that cerium oxide 99.9% can be also brown and also white.Something is smell bad here.

Thanks :)
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