Sodium Silicate (redirected from Glass water)

sodium 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 metasilicate is Na₂SiO₃ (or Na₂O·SiO₂); sodium disilicate is Na₂Si₂O₅ (or Na₂O·2SiO₂); sodium tetrasilicate is Na₂Si₄O₉ (or Na₂O·4SiO₂). All these compounds are transparent, glassy or crystalline solids that have high melting points (above 800°C;) and are water soluble. They are produced chiefly by fusing sand and sodium carbonate in various proportions. The product is commonly known as water glass. The greatest single use of sodium silicates is as a raw material for making silica gel.

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sodium silicate [′sōd·ē·əm ′sil·ə‚kāt]

(inorganic chemistry)

Na₂SiO₃A gray-white powder; soluble in alkalies and water, insoluble in alcohol and acids; used to fireproof textiles, in petroleum refining and corrugated paperboard manufacture, and as an egg preservative. Also known as liquid glass; silicate of soda; sodium metasilicate; soluble glass; water glass.

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Sodium Silicate 

any of the sodium salts of silicic acids. Known anhydrous sodium silicates include sodium metasilicate (Na₂O·SiO₂ or Na₂SiO₃), sodium orthosilicate (2Na₂O·SiO₂ or Na₄SiO₄), sodium sesquisilicate (3Na₂O·2SiO₂ or Na₆Si₂O₇), sodium bisilicate (Na₂O·2SiO₂ or Na₂Si₂O₅), and sodium trisilicate(Na₂O·3SiO₂ or Na₂Si₃O₇).