Magnesium sulfate can react with light burned powder to form magnesium oxysulfide cement after being dissolved in water.

Tris is an organic compound with a chemical formula of C4H11NO3.

It can be used as pharmaceuticals, pesticides, dyes and other organic synthesis intermediates.

In the lives of modern people, flame retardants are almost everywhere. However, people usually can't see it at all, nor can they know its existence. For most people, there is no idea "what exactly is a flame retardant".