What is glass made of?

A solid amorphous glass mixture cooled by electrofusion. Generally brittle and transparent, the chemical composition is complex, and the main component is silicate.

Ordinary glass is made of soda ash, limestone, timely and feldspar as main raw materials, which are melted, clarified and homogenized in a glass kiln, then processed and shaped, and then annealed to obtain glass products. The main component of ordinary glass is roughly CaO∶Na2O∶6SiO2, which is a mixture of sodium phosphate, calcium silicate and silicon dioxide. Without a certain melting point, it softens in a certain temperature range and can be made into products of any shape after softening. In addition to ordinary glass, there are special glasses mainly made of borate, phosphate and fluoride.