I'm looking for a fairly large (>100k) dataset of chemical compounds (and materials) that has conductivities. I've looked at PubMed, but couldn't find conductivities.
I would ideally like to avoid APIs as they have limits, and scraping is too slow. I would like to just download a file containing a compound and it's physical/chemical properties (ie. like a JSON or something).
I've looked through The Materials Project's datasets and they don't have the properties I listed above.