Galinstan is the name for a family of alloys consisting of Gallium, Indium and Tin. This eutectic alloy remains liquid at room temperature. With a melting point of -19 °C, Galinstan maintains its liquid form even in minus temperatures. It is used in many applications as a replacement for mercury.
Composition of Galinstan Metal Alloy
This metal alloy usually contains the three elements in the following proportions.
• Gallium (Ga): 68.5%
• Indium (In): 21.5%
• Tin (Sn): 10%
It does not have any specific chemical formula; however, this alloy is sometimes denoted as GaInSn using the symbols of all the three component elements.
Galinstan Production
It can be manufactured in quite a simple way. Gallium, Indium and Tin are melted and mixed together in appropriate proportions in order to produce this liquid metal alloy.