Heheh......
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I'm not sure about the kerosene/mineral spirits......while it would eliminate the conduction as an issue , it would never work as a final coolant , it'll freeze.Even gasoline would....as far as paraffins go something like n-Hexane or n-Heptane would work , but then there's the whole compatibility issue.
I think for the moment , I'll make some anhydrous Isopropanol and check it out.