The red mercury hoax has been going around the internet for decades and the substance doesn't actually exist.
A message was shared widely on social media with a claim that red mercury, a chemical used in manufacturing nuclear weapons, can be found in old televisions and radios. The rumor states that the liquid is worth crores. Although there was no chemical such as red mercury, there was red-colored mercury-containing the ore mercury sulphide, a BBC report found. It was harmful not because it's highly explosive, but because plain old mercury is hazardous to health. There are also various instances where police arrested scammers who tried to cheat people by selling them.