Custom eutectic alloy. A safe and non-toxic alternative to Mercury. Melting point is roughly 3°F (-16°C) 98NAUse for Thermometers, Solder, Parlor Tricks, Tom Foolery, Bamboozles, and Hoodwinks.Contains Gallium, Indium, Tin, *Bismuth*(1%~.5g), and Antimony. All 99.99% pure prior to alloy.Bismuth and Antimony added for less surface tension and oxidation resistance.1 drop of 2% diluted solution of sulfuric acid recommended to prevent surface wetting, when needed. Not included.https://en.m.wikipedia.org/wiki/Galinstan (Product is NOT Gallinstan but similar.)https://en.m.wikipedia.org/wiki/Bismuth. (Bismuth wiki)*Possibly toxicOpen to fair offers.