I have been trying to use DWSIM to simulate a basic blast furnace used in the iron making process. I am having a hard time using the compound creation tool available within DWSIM as some of the data that is generated seems to be practically flawed. It would be great if i could know if there are any specific websites to obtain .json files for compounds like Fe, FeS, MgCO3 etc. used in the cement industry. I would also like to know which is the most prefferd property package for this scenario.