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Dehydrating P2O5

newb12344
in Inorganic Chemistry

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Is there any chemical or physical route to dehydrate P2O5?

 

I just had a sample of P2O5 bought from Aldrich, and since it came on the weekend I wasn't able to store it in a moisture free area for three days. The monsoon also contributed in hydrating the phosphorous pentoxide within the sealed container. It has formed brown(ish) agglomerates due to absorption of water.

I've heard we could get Pyrophosphate traces at max with simple heating.
Please suggest a possible method to dehydrate the material.

(Go crazy.. the lab provides me with any sort of equipment)

Edited by newb12344

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