Sodium Silicate solution
chemical formula: Na2O-2SiO2
( liquid )
Sodium Silicate, also known as 'Water Glass' or 'Liquid Glass', is a compound used in cements, passive fire protection, refractories, textile and lumber processing. Sodium Silicate was also used as an egg preservation agent in the early 20th Century with large success. When fresh eggs are immersed in it, bacteria which cause the eggs to spoil are kept out and water is kept in. Eggs can be kept fresh using this method for up to nine months. Sodium Silicate, mixed with Ethyl Alcohol makes a SuperBall, a common chemistry Demonstration.
MSDS ( Material Safety Data Sheet )