Sciencemadness Discussion Board

Collaborative project: a comprehensive heat of formation table?

Polverone - 14-1-2012 at 18:25

Check out http://www.chemeo.com for a good starting point. It is an aggregation based on databases of high quality but less accessibility. The creator values accuracy over breadth, so there are no anonymous contributions, but it is good inspiration for the sort of site you are envisioning.

Lambda-Eyde - 14-1-2012 at 18:30

Or just buy "SI Chemical Data" or the CRC handbook. I just don't see an amateur project producing valuable thermodynamic data.

DougTheMapper - 15-1-2012 at 00:18

The 89th edition (2008-09) of the CRC handbook is around $40 shipped and the 90th (2009-10) is around $70 shipped. I happened to come across a high-quality .pdf of the 89th online. Chemeo is also nice as polverone mentioned.

blogfast25 - 15-1-2012 at 06:38

NIST web book:

http://webbook.nist.gov/chemistry/

Also: Wolfram Alpha

White Yeti - 15-1-2012 at 09:28

Thanks for the links.

Of all those, I found Wolfram Alpha the most helpful. I guess there is no need to reinvent the wheel.

I'll delete my post.

Formatik - 15-1-2012 at 10:37

My favorite source for this is The Thermochemistry of the Chemical Substances by F. Russell Bichowsky, Frederick D. Rossin (1951, 3rd printing, 460 pages). It's a very handy book.

For a brief list of some heat of formation thermodynamics here. Just convert to kcal/mol using the molar mass.


zoombafu - 15-1-2012 at 11:24

I have an older CRC handbook, from the 80s (I don't remember the edition), I'm not doing 'groundbreaking research' so it is not necessary to know the values for every single new compound that comes onto the market, so an older (and much cheaper) version is fine for me.