Find properties of substances?

[dRic2]

Hi, I'm pretty good in basic thermodynamics so I know how to make simple predictions of properties of substances like( h, g, cp, ecc...) but I always need some value to start with (e.g. entalpy of formation at 298K, perfect gas). I was wondering if there is a website with this kind of data for the most common substances. I tried using databook (like Perry) but since I mainly use to check homeworks' result I ended up loosing much more time looking for that values rather than finish the exercise. I don't trust wikipedia either because it's never specified the conditions under which the values were estimated.

 

[DoItForYourself]

Hello,

Have you ever tried NIST online database?

 

[dRic2]

Mindblowing! That's exactly what I was looking for, thank you.

 

[DoItForYourself]

You are welcome!

Indeed, it is very useful, but I like it without the interactive display (you can untick the respective box and get table instead of graph).

In case you need the thermophysical properties of air or ethylene glycol, you can also visit this site: http://www.mhtl.uwaterloo.ca/old/onlinetools/airprop/airprop.html.
However, you can't have as much information as in NIST (for example enthalpy, entropy, internal energy).

 

[dRic2]

Indeed, it is very useful, but I like it without the interactive display (you can untick the respective box and get table instead of graph).

I don't know what your are talking about. I just typed some names in the research bar and then clicked on "Thermodynamic Gas Properties" and I got a list of value and even some formulas to make predictions. It is very useful. Thank you again for the help!

 

[DoItForYourself]

Yes, this is helpful, but I think this is helpful too (Thermophysical fluid properties): http://webbook.nist.gov/chemistry/fluid/#.

 

[dRic2]

Yes, very useful that too. Thanks again! :D