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  • metal silicates
  • Characterization of chitin-metal silicates as binding superdisintegrants. (sigmaaldrich.com)
  • When chitin is used in pharmaceutical formulations, processing of chitin with metal silicates is advantageous, from both an industrial and pharmaceutical perspective, compared to processing using silicon dioxide. (sigmaaldrich.com)
  • Unlike the use of acidic and basic reagents for the industrial preparation of chitin-silica particles, coprecipitation of metal silicates is dependent upon a simple replacement reaction between sodium silicate and metal chlorides. (sigmaaldrich.com)
  • The good compaction and compression properties shown by the chitin-metal silicates were found to be strongly dependent upon the type of metal silicate coprecipitated onto chitin. (sigmaaldrich.com)
  • In addition, the inherent binding and disintegration abilities of chitin-metal silicates are useful in pharmaceutical applications when poorly compressible and/or highly nonpolar drugs need to be formulated. (sigmaaldrich.com)
  • mineral
  • Octahedral Si in the form of hexahydroxysilicate ([Si(OH)−) is observed in thaumasite[citation needed] a mineral occurring rarely in nature but sometimes observed amongst other calcium silicate hydrate artificially formed in cement and concrete submitted to a severe sulfate attack. (wikipedia.org)
  • The silicates, owing to their abundance on the Earth , constitute the most important mineral class. (britannica.com)
  • This means that Silicate Dispersion Paintis great for uses such as finishing of mineral-surfaces such as interior and exterior concrete, masonry, stucco and drywall, especially on walls where the breathability of the whole wall system could be ruined by an impermeable paint, such as in strawbale and adobe housing construction. (factbites.com)
  • Sodium silicate is just one of several dissolved mineral compounds used to petrify wood. (ehow.co.uk)
  • A silicate mineral is generally an ionic compound whose anions consist predominantly of silicon and oxygen atoms. (wikipedia.org)
  • soluble
  • The nature of soluble silicates is relevant to understanding biomineralization and the synthesis of aluminosilicates, such as the industrially important catalysts called zeolites. (wikipedia.org)
  • Silicate provides a naturally soluble form of silicon which enters plant cells and builds a hardened shield against disease and insect attack. (eurohydro.com)
  • tetrahedra
  • Cyclosilicates (from Greek κύκλος kuklos , circle), or ring silicates, have linked tetrahedra with (T x O 3 x ) 2 x − or a ratio of 1:3. (wikipedia.org)
  • ions
  • The more acidic the solution becomes, the more reactive the silicate ions become with available hydrogen ions. (ehow.co.uk)
  • aqueous
  • You can make your own sodium silicate-impregnated wood by soaking your lumber in a 40 per cent aqueous solution of liquid glass under about 100 psi of pressure. (ehow.co.uk)
  • Here again, the water sensitivity of the silicate base has rendered the coating susceptible to aqueous attack. (freepatentsonline.com)
  • Neutral
  • New pH neutral Silicate contains ancient deposits of biologically transformed organic matter, plus naturally formed silicic acid clay. (eurohydro.com)
  • Earth's
  • Silicates constitute the majority of Earth's crust, as well as the other terrestrial planets, rocky moons, and asteroids. (wikipedia.org)
  • Living things also contribute to the silicate cycle near the Earth's surface. (wikipedia.org)
  • the igneous rocks that make up more than 90 percent of the Earth's crust are composed of virtually all silicates. (britannica.com)
  • structural
  • Figure 14: Various structural linkage schemes in silicates. (britannica.com)
  • If two of the oxygens are shared and the structure is arranged in a ring, such as that shown here, we get the basic structural unit of the cyclosilcates or ring silicates. (tulane.edu)
  • routine
  • These instrumental developments now permit a wide for routine silicate rock analysis are discussed, including range of trace elements to be determined on a routine basis. (springer.com)
  • water
  • The single most important property is silicate paint's breathablility or, in technical terms, water vapour permeance of 77 US perms which is about equal to house-wraps like Tyvek® and over 100 times as permeable as a 2-coat latex paint. (factbites.com)
  • When its water carrier evaporates away, sodium silicate (a mixture of sand and soda ash) leaves behind a fully bonded sheet of silicon glass. (ehow.co.uk)