Soluble Silicate Glasses

Fritted glasses or frits are prepared by mixing and fusing finely-ground micronutrients and silicate or glass powders. Solubility of tiie metallic salts in the frits is controlled by composition of the matrix and by particle size. These can contain several micronutrients to provide custom mixes for vari-... 

Potassium Silicate, Soluble potash glass soluble... 

Synonyms Disodium metasilicate Disodium monosilicate Silicic acid, disodium salt Sodium metasilicate anhydrous Sodium silicate Soluble glass Water glass... 

Sodium vinyl sulfonate polymerized. See Polysodium vinyl sulfonate Solanum tuberosum. See Potato (Solanum tuberosum) starch Soluble glass. See Sodium metasilicate Sodium silicate Soluble guncotton. See Nitrocellulose Solum diatomeae. See Diatomaceous earth... 

Silicon shows a rich variety of chemical properties and it lies at the heart of much modern technology/ Indeed, it ranges from such bulk commodities as concrete, clays and ceramics, through more chemically modified systems such as soluble silicates, glasses and glazes to the recent industries based on silicone polymers and solid-state electronics devices. The refined technology of ultrapure silicon itself is perhaps the most elegant example of the close relation between chemistry and solid-state physics and has led to numerous developments such as the transistor, printed circuits and microelectronics (p. 332). 

Silicagel. Silicagel is usually prepared from sodium silicates, which are produced as glasses with a stoichiometry of Si02/Na20 = 0.6-0.25. At the right pH they arc soluble in water and the solution contains mixtures of silicate anions monomeric, dimeric, trimeric species, etc. (Fig. 3.13). 

With respect to pH sensitivity and an adequate speed of response (time constant r = RC where R is the resistance of the measuring circuit and C the capacitance of the electrode), a certain degree of superficial swelling is needed however, the gel layer thus formed should remain thin in order to minimize the solubility of the glass and to guarantee sufficient durability of the electrode. In this respect lithium barium silicates offer an attractive compromise32. 

Orthopedic devices, 3 721-735 joint replacement, 3 727-735 Orthopedic marrow needles, 3 743-744 Orthophosphate (PO4), in soil, 11 112 Orthophosphates, 18 830-841 20 637 magnesium, 18 839 manufacture of, 18 853-855 Orthophosphate salts, 18 836 Orthophosphoric acid, 18 815, 817-826 condensation of, 18 826 properties of, 18 817-819 solubility of boron halides in, 4 140t orf/zo-phthalic resins, 20 101, 113 formulation of, 20 102 Orthorhombic crystal system, 8 114t Orthorhombic phosphorus pentoxide, 19 49 Orthorhombic structure, of ferroelectric crystals, 11 95, 96 Orthorhombic symmetry, 8 114t Orthosilicate monomers, in silicate glasses, 22 453... 

Kurkjian C. R. and Russel L. E. (1958). Solubility of water in molten alkali silicates. Jour. Soc. Glass Technol, 42 130-144. 

Sodium silicate is water soluble (forming water glass), but silicones are water repellents. Explain the difference. 

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