I often go to NIST to get physical properties of fluids that I work with. This morning I needed properties of propene at 39 bara pressure from 70-80C (my day job involves propene to make poly(propene), aka polypropylene - plastic #5). The NIST webpage returns a graph and options for viewing as a table or dowload as tab-delimited text file. Pretty useful. The joy comes when you:
1) Copy the URL: https://webbook.nist.gov/cgi/fluid.cgi?Action=Data&Wide=on&ID=C115071&Type=IsoBar&Digits=5&P=39&THigh=80&TLow=70&TInc=1&RefState=DEF&TUnit=C&PUnit=bar&DUnit=kg%2Fm3&HUnit=kJ%2Fkg&WUnit=m%2Fs&VisUnit=Pa*s&STUnit=N%2Fm
2) in JMP: File > Internet Open; paste URL; Open As = Data
There you have it, a new JMP data table with thermophysical data. I will be regressing density(temperature) and other properties for use in a model that I am developing.
If you have not used the NIST Chemistry Webbook, test it out.