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simba
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[*] posted on 14-12-2011 at 17:48
Phosphoryl chloride

Any ideas on how to prepare this useful chemical?

I was thinking about burning some red phosphorus, mixing the phosphorus pentoxide residue with some more red phosphorus, and then gassing the mixture with chlorine. What are your opinions?
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ScienceSquirrel
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[*] posted on 16-12-2011 at 06:10


http://en.wikipedia.org/wiki/Phosphoryl_chloride#Preparation
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simba
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[*] posted on 16-12-2011 at 15:49


I'd looked wikipedia already, but couldn't find much info elsewhere. I wanted to know if someone had already tried any of these methods before actually trying myself.
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Lambda-Eyde
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[*] posted on 16-12-2011 at 16:21


Burning phosphorus is not a practical way of obtaining phosphorus pentoxide. For POCl<sub>3</sub>, see the attached document.

Attachment: POCl3.from.P2O5.NaCl.pdf (802kB)
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simba
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[*] posted on 17-12-2011 at 07:13


Quote: Originally posted by Lambda-Eyde  
Burning phosphorus is not a practical way of obtaining phosphorus pentoxide. For POCl<sub>3</sub>, see the attached document.


Thanks, that was the kind of info I was looking for.

Indeed, burning phosphorus is not the best way to get P2O5, I could just buy some in fact, but I don't need much POCl3 anyway, so it won't be a problem.
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[*] posted on 17-12-2011 at 07:56


where and how did you get red phosphorus to begin with? match boxes?
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simba
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[*] posted on 17-12-2011 at 08:13


My country has no significant meth production (or any other drug in fact), and so red phosphorus is not something so difficult to acquire, you can buy tiny amounts from chemical suppliers without many questions.
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