One day I had small attack of shopping and I bought small pellet of gallium. It is quite strange, non toxic metal. It’s melting point is only 30Â°C. To be exact- 29.7646Â°C. And boiling point is very high- 2204Â°C! It can melt in your hand. The only problem, it will stain your skin.
Gallium is widely used as gallium arsenide in light emitting diodes (LED) and solid state lasers.
While I was writing this post, my gallium pellet melted and stained plastic sack.
Now I need to find any use for it. Maybe it can be used to make “super-turbo” high quality audio jacks? No shaking connections, no oxide contacts…