water glass


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to water glass: watch glass, Liquid glass

water glass

or

soluble glass,

colorless, transparent, glasslike substance available commercially as a powder or as a transparent, viscous solution in water. Chemically it is sodium silicatesodium silicate,
any one of several compounds containing sodium oxide, Na2O, and silica, Si2O, or a mixture of sodium silicates. Sodium orthosilicate is Na4SiO4 (or 2Na2O·SiO2); sodium meta
..... Click the link for more information.
, potassium silicate, or a mixture of these. It is prepared by fusing sodium or potassium carbonate with sand or by heating sodium or potassium hydroxide with sand under pressure. Water glass is very soluble in water, but the glassy solid dissolves slowly, even in boiling water. Water glass has adhesive properties and is fire resistant. It is used as a detergent; as a cement for glass, pottery, and stoneware; for fireproofing paper, wood, cement, and other substances; for fixing pigments in paintings and cloth printing; and for preserving eggs (it fills the pores in the eggshell, preventing entrance of air).

water glass

[′wȯd·ər ‚glas]
(inorganic chemistry)
References in periodicals archive ?
Even then, you required express permission from Wa Hellen with no option of delegated powers.Out of the six water glasses that were in the sideboard when I was born many years ago, five are still intact.
In the first step, 5, 10, and 20 wt% of Midafen R-100 was distributed in sodium water glass by vigorous stirring on a magnetic stirrer for 10 min.
The concentration of the water glass is often represented by Baume degree.
During the second experimental series a certain part of the NaOH activator solution was replaced with water glass solution.
White wine glass should be at a 45 degree angle to the left of the water glass.
Hold up the water glass and place your finger in the water.
what'd you say?" Then, once we can see and actually hear, we fumble around on the nightstand and sort out the water glass, four pairs of reading glasses, gun magazines, that cool piece of bent metal we found 10 years ago and finally lay our stiff fingers on our roscoe.
Tokyo Electric Power Co spokesperson Naoki Tsunoda said the company's attempt to stem the leak by injecting 1,500 litres of "water glass", or sodium silicate, and another agent near a seaside pit where the water was leaking appeared to have been successful.
the 100% renewable, non-toxic water glass crystals in the cassette silently get to work, sucking moisture from the air.
The 80 gramme bar of silver is one of 30 reclaimed from 300,000 waste water glass testing vials - micro test tubes - used in the last eight years.
Let's look at the proverbial water glass as half full for the moment:
It produces and sells water glass (sodium silicate), detergents and cleaning materials on the European market.