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Specialty Chemistry Forums => Chemical Engineering Forum => Topic started by: Alkharousssi on July 02, 2006, 10:34:38 AM

Title: Thermochemical Properties of material
Post by: Alkharousssi on July 02, 2006, 10:34:38 AM
I was searching about the boiling point of some material at a pressure of 550 psig
but I could not find any ???
so can any one help me by any reference or fromula to caculate and I will be thankfull
Title: Re: Thermochemical Properties of material
Post by: Donaldson Tan on July 02, 2006, 11:18:04 AM
NIST Chemistry WebBook (http://webbook.nist.gov/)
ATHAS Data Bank (http://web.utk.edu/~athas/databank/welcome-db.html)
Korean thermophysical properties Data Bank (http://www.cheric.org/kdb/)

Hope you find this helpful.

I was thinking of using Antoinne's Equation which comes in the form of:

lg P = A - B/(T + C) where
P: Saturated Vapour Pressure of the substance (usually in mmHg)
A, B, C: Antoinne's constants which are specific to the substance.
T: the boiling point (usually in oC)

The values of A, B and C are tabulated in many data books.

You should be able to find the values of A,B and C at the links I had supplemented you or the infamous CRC Handbook for Physics and Chemistry.