Sodium silicate is a clear, odourless, viscous liquid. It has a molar ratio of 3.27 and a total solids content of 36.8%. It is produced by fusing sand (SiO2) with sodium carbonate which produces solid glass (cullet). The glass is then dissolved in water and steam under high pressure which produces the sodium silicate solution also known as water glass. It is widely used in industry as sealants, binders, deflocculants, emulsifiers and buffers. It is commonly used to seal conrete and cement.
