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Date:

Mon, 22 May 2006 14:59:54 -0400

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Stable Isotope Geochemistry <[log in to unmask]>

Subject:

phosphoric acid vapor pressure

From:

Jason Curtis <[log in to unmask]>

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Stable Isotope Geochemistry <[log in to unmask]>

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I am looking for some information about how high a vacuum is needed to 
boil 100% ortho phosphoric acid at room temperature.  I know from my 
own experience that it does not boil at 90C at 1e-3 mbar but someone 
asked me it they could increase the vacuum to 1e-6 mbar at room temp 
and still not have acid moving around.  Thanks in advance for help with 
this weird question.  If I don't hear anything I guess I will just have 
to experiment!   Jason

Jason Curtis, Ph.D.
Stable Isotope Mass Spec Lab manager
Associate-In Geochemistry
Department of Geological Sciences
241 Williamson Hall
University of Florida
Gainesville, FL 32611
[log in to unmask], office 352-392-2296
lab 352-392-3344, fax 352-392-9294

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