Galinstan is a brand-name and a common name for any member of a family of liquid metal eutectic alloys whose composition is mainly consisting of gallium, indium, and tin. Such eutectic alloys are liquids at room temperature, typically melting at +11 °C (52 °F), while commercial Galinstan melts at −19 °C (−2 °F).[1]
Galinstan is composed of 68.5% Ga, 21.5% In, and 10.0% Sn (by weight)[2]
Due to the low toxicity and low reactivity of its component metals, galinstan finds use as a replacement for many applications that previously employed the toxic liquid mercury or the reactive NaK (sodium–potassium alloy).
