Sodium silicate, usually known as “liquid glass” is a white powder that readily dissolves in water. It is alkaline in nature. The production of sodium silicate is performed using sodium carbonate and silicon dioxide. It is used to make a thick paste for metal repairing, is used to seal leaks in automotive head gaskets, it is used as a substrate for algal growth in aquaculture hatcheries, it is used in egg preservation for keeping the bacteria that causes the egg to spoil away from it and retaining the water. In this way eggs, can be preserved for up 9 months.