For those who would want another PCl5 route other than hydrolyzing by cold water...
From http://216.239.57.100/search?q=cache%3A3_AznlKVc4YC%3Awww.rsc.org/suppdata/CC/b1/b102814f/b102814f.doc (http://216.239.57.100/search?q=cache%3A3_AznlKVc4YC%3Awww.rsc.org/suppdata/CC/b1/b102814f/b102814f.doc)
A 65 mL round bottom flask was charged with PCl5 (4.06 g, 19.5 mmole) and 2,6-naphthalene-disulfonic acid. The flask was fitted with a condenser and CaCl2 drying tube and refluxed at 130ºC for 4h. The resulting POCl3 was distilled under reduced pressure....
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Cheers!