| | | (...) Another (and somewhat more relevant) reason you can't have a universal solvent is that there is a significant "polar/nonpolar" issue in the action of solvents. Water is polar, and something like heptane (C7H16, found in gasoline) is nonpolar. (...) (25 years ago, 14-Sep-99, to lugnet.off-topic.geek)
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