water glass

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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
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, 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 ?
When our waiter did appear with the side orders, he retracted nervously as a manager stepped in front of him to make the unnecessary gesture of topping up our already-full water glasses.
The waiter was quick to bring four water glasses to the table, along with butter and a basket of fresh bread from Boulevard Bread Co.
For example, older children can oversee art projects, keep water glasses full or make sure little ones wash their hands before eating.
From the furniture to the vases, the carpet to the tables and the chairs to the water glasses, everything has been carefully selected by design experts.
In addition to ceramic pasta plates, espresso and latte cups, and a breakfast set, Zwicker has designed cordial, wine and water glasses that are hand-painted with gold and platinum.
It had mixed chairs, mirrors, some fake wood paneling and bright pink napkins in its water glasses.
50 for a place setting, green heritage water glasses, pounds 3 each, and jug, pounds 22, all Marks & Spencer; aged French dinner plates and bowls, pounds 8.
Designed by Marcello Morandini, the line comes in two different designs -- Light and Shadow, and Geometric -- in champagne, white wine, red wine and water glasses.
Water spills out of water glasses, and the building shakes.
Crystal goblets, champagne flutes and water glasses were rimmed with gold as well.
Yet, in other ways service is generally crisp - bread replaced, cutlery brought, water glasses refilled.