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http://en.wikipedia.org/wiki/Liquid_metal describes some alloys which are liquid at room temperature containing gallium, and sodium-potassium. We are advised not to handle them, and mercury, with unprotected skin. Are there any which are safe (as safe as, say, alcohol or glycerine)?

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I suppose, while not a true alloy, ferrofluid (ask.metafilter.com/145880/Ferro-fluid-experiment-safe) is relatively harmless and has several metallic properties... – Gnubie May 15 '14 at 19:25

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