The Fact-Web Apps offer free but very limited interaction with the FactSage 7.2 package - The compound data are taken from FactPS - the FACT pure substances database (2018). The Fact-Web Apps are offered for demonstration purposes only. Many of the features available in the full FactSage 7.2 package have been removed or diluted.

To cite FactSage in a publication, please use the following:

C. W. Bale, E. Bélisle, P. Chartrand, S. A. Decterov, G. Eriksson, A.E. Gheribi, K. Hack, I. H. Jung, Y. B. Kang, J. Melançon, A. D. Pelton, S. Petersen, C. Robelin. J. Sangster and M-A. Van Ende, FactSage Thermochemical Software and Databases, 2010-2016, Calphad, vol. 54, pp 35-53, 2016 <>

If you employ the results of Fact-Web calculations in a publication make sure that you are aware of the limitations.  This is particularly important in Equilib-Web which does not have access to real solution data. To cite Fact-Web or one of its Apps in a publication please use the following reference:

C. W. Bale and E. Bélisle, Fact-Web suite of interactive programs,

Fact-Web has been in operation since 1996. To date over 10 million webpages have been displayed.