Difference between revisions of "Phosphorus pentoxide"

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'''Phosphorus pentoxide''' is a chemical compound with molecular formula P<sub>4</sub>O<sub>10</sub>, more often written as P<sub>2</sub>O<sub>5</sub>.
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'''Phosphorus pentoxide''' is a chemical compound with molecular formula '''P<sub>4</sub>O<sub>10</sub>''', more often written as '''P<sub>2</sub>O<sub>5</sub>'''.
  
 
==Properties==
 
==Properties==
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<references/>
 
<references/>
 
===Relevant Sciencemadness threads===
 
===Relevant Sciencemadness threads===
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*[http://www.sciencemadness.org/talk/viewthread.php?tid=1779 P2O5 and P4O10]
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*[http://www.sciencemadness.org/talk/viewthread.php?tid=61801 Recycling Phosphorus Pentoxide]
  
 
[[Category:Chemical compounds]]
 
[[Category:Chemical compounds]]

Revision as of 22:48, 4 October 2015

Phosphorus pentoxide is a chemical compound with molecular formula P4O10, more often written as P2O5.

Properties

Chemical

Phosphorus pentoxide is the anhydride of phosphoric acid. It will react exothermically with water to yield the said acid.

Physical

Phosphorous pentoxide is a white solid, with a pungent odor and strong deliquescent. Its density is 2.30 g/cm3. It boils at 423 °C under atmospheric pressure; if heated more rapidly it can sublimate.

Availability

Phosphorus pentoxide is sold by chemical suppliers.

Preparation

Phosphorus pentoxide can be made by burning elemental phosphorus.

Projects

  • Dry solvents, especially the halogenated ones, which cannot be dried with alkali metals
  • Make pure phosphoric acid
  • Convert primary amides into nitriles
  • Make dinitrogen pentoxide
  • Make dichlorine heptoxide

Handling

Safety

It is an extremely powerful desiccant, and contact with bare hand must be avoided.

Storage

In closed and sealed bottles, away from any moisture.

Disposal

References

Relevant Sciencemadness threads