Hygroscopic chemical compound of variable Na2O/SiO2 ratio precursor of waterglass
"E550" redirects here. For the Italian locomotive, see FS Class E550.
This article's lead section may be too short to adequately summarize the key points. Please consider expanding the lead to provide an accessible overview of all important aspects of the article.(June 2023)
Sodium silicate is a generic name for chemical compounds with the formula Na 2xSi yO 2y+x or (Na 2O) x·(SiO 2) y, such as sodium metasilicate Na 2SiO 3, sodium orthosilicate Na 4SiO 4, and sodium pyrosilicate Na 6Si 2O 7. The anions are often polymeric. These compounds are generally colorless transparent solids or white powders, and soluble in water in various amounts.
Sodium silicate is also the technical and common name for a mixture of such compounds, chiefly the metasilicate, also called waterglass, water glass, or liquid glass. The product has a wide variety of uses, including the formulation of cements, coatings, passive fire protection, textile and lumber processing, manufacture of refractory ceramics, as adhesives, and in the production of silica gel. The commercial product, available in water solution or in solid form, is often greenish or blue owing to the presence of iron-containing impurities.
In industry, the various grades of sodium silicate are characterized by their SiO2:Na2O weight ratio (which can be converted to molar ratio by multiplication with 1.032). The ratio can vary between 1:2 and 3.75:1.[1] Grades with ratio below 2.85:1 are termed alkaline. Those with a higher SiO2:Na2O ratio are described as neutral.
^Gerard Lagaly, Werner Tufar, A. Minihan, A. Lovell "Silicates" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, 2005. doi:10.1002/14356007.a23_661
Sodiumsilicate is a generic name for chemical compounds with the formula Na 2xSi yO 2y+x or (Na 2O) x·(SiO 2) y, such as sodium metasilicate Na 2SiO 3...
Sodium aluminosilicate may also be listed as: aluminium sodium salt sodium silicoaluminate aluminosilicic acid, sodium salt sodium aluminium silicate...
such as sodium metasilicate; or any ester containing the corresponding chemical group, such as tetramethyl orthosilicate. The name "silicate" is sometimes...
vermiculite bonded with sodiumsilicate. Although it is popularly considered an asbestos substitute, early uses of calcium silicate for insulation still...
Sodium metasilicate is the chemical substance with formula Na 2SiO 3, which is the main component of commercial sodiumsilicate solutions. It is an ionic...
glass). Potassium silicate is strongly alkaline. Sodiumsilicate Silica gel Gerard Lagaly, Werner Tufar, A. Minihan, A. Lovell "Silicates" in Ullmann's Encyclopedia...
usually contains sodiumsilicate glasses with a high hydrolytic resistance through surface finishing. Sodiumsilicate glass is a silicate glass, which contains...
as copper sulfate or cobalt(II) chloride, to an aqueous solution of sodiumsilicate (otherwise known as waterglass). This results in the growth of plant-like...
commonly used binder resin in the foundry core process. Water glass ( sodiumsilicate [Na2SiO3 or (Na2O)(SiO2)] ) is a high strength binder used with silica...
mixing exfoliated vermiculite with inorganic bonding agents such as sodiumsilicate, cement (specific quantities), and other compounds, such as those containing...
Silicate minerals are rock-forming minerals made up of silicate groups. They are the largest and most important class of minerals and make up approximately...
delivery anywhere in the US on a job lot order basis. Sodiumsilicate is produced by fusing sodium carbonate with sand or heating both ingredients under...
Synthetic magnesium silicates are white, odorless, finely divided powders formed by the precipitation reaction of water-soluble sodiumsilicate (water glass)...
processing. Sodium carbonate (Na2CO3, "soda") is a common additive and acts to lower the glass-transition temperature. However, sodiumsilicate is water-soluble...
The name was derived from two of its original ingredients, sodium perborate and sodiumsilicate. The chore of washing the laundry began to change with the...
potassium nitrate and silica. In the latter case, innocuous sodiumsilicates are generated. While sodium azide is still used in evacuation slides on modern aircraft...
successively). As an example the reaction of sodium oxide and SiO2 can produce sodium orthosilicate, sodiumsilicate, and glasses, dependent on the proportions...
polymer formed from sodium 1-hydroxy-3-methyl-3-(3-(trimethoxysilyl)propyl)-1-triazene-2-oxide and tetraethyl silicate. Berdazimer sodium was approved for...
Silica fibers are fibers made of sodiumsilicate (water glass). They are used in heat protection (including asbestos substitution) and in packings and...
olive oil. Sodiumsilicate (water glass) was used in soap-making in the United States in the 1860s, and in 1876, Henkel sold a sodiumsilicate-based product...
pathway to produce geopolymers is by the reaction of metakaolin with sodiumsilicate, which is an alkaline solution, but other processes are also possible...
factory producing sodiumsilicate. They marketed his first product, "Universalwaschmittel", a universal detergent based on sodiumsilicate. In 1878, Henkel...
aqueous sodium hydroxide solutions at ambient temperatures to form soluble silicates. Because of this, glass joints and stopcocks exposed to sodium hydroxide...
one-quarter inch thick) of sawdust infused with a mild adhesive (usually sodiumsilicate). An ignition fuse is inserted into a hole drilled into the hardened...
using direct currents from silicate baths containing varying concentration of sodiumsilicate, sodium hydroxide, borax, sodium nitrite and nickel sulphate...
Global Information