COMPOSITION OF GLASS

WHAT IS GLASS MADE OF?

Glass as we know has been used in the construction business for a long time. Moreover, from the original use of glass as window panes and partitions, it is now being used as a mainstream construction material, thanks to technological advancements.

In this post, let's look at the composition of glass.

• Silica: Known as the major component of glass, silica content ( also known as silica dioxide ) makes up about 72% of the glass. Silica needs a very high temperature to fuse. To prevent that, it is mixed with sodium carbonate or potassium carbonate. 
• Potash: Potash increases the thermal expansion properties of glass, making it fire resistant. 
• Soda: Soda/Sodium oxide increases the fusion capability of glass hence, excess of it is harmful. 
• Lime: Lime imparts durability and toughness of glass.
• Lead oxide: Lead is responsible for the coloration of glass. However, in large quantities, it can increase the density of glass, giving it a yellow color, so it should be avoided. 
• Cullet: Cullet acts as a flux to prevent the loss of alkali by volatilization.