A silicate is a compound with an anion that bears a silicon molecule. Most of the silicates in existence are oxides, but hexafluorosilicate and other anions are also included. Silicates are a common—in fact, the major—component of the earth’s crust, as well as other planets with a terrestrial environment, asteroids, and rocky moons. Portland cement, sand, and thousands of other minerals can be called silicates. Silicate compounds (as well as silicate minerals) have silicate anions with charges balanced by a wide variety of cations. Myriad silicate anions can exist, with each having the ability to form compounds with a wide variety of different cations. This ability is the reason why the silicate class of compounds is relatively large compared to other compound classes. Natural and synthetic minerals can also fit in this class.
Silicate can also occur in solutions, even if they are well characterized as solids. The silicon-bearing anion is the essential conjugate base of silicic acid, and both are elusive, as are all the intermediate species. Solutions of silicates are typically observed as mixtures of condensed and partially protonated clusters of silicate. The properties of soluble silicates is very relevant to understanding the process of biomineralization and the synthesis of aluminosilicates, including catalysts called zeolites, which is important in various kinds of industries.
Sodium silicate is one of the known silicate compounds, which is also known as water glass or liquid glass. Sodium silicate can be found in aqueous solution and in solid form that is used in passive fire protection, refractories, the processing of textile and lumber, automobiles, and cements. Sodium silicate is also used in the process of chromatography.
This category contains scientific information on silicate, a compound with an anion that bears a silicon molecule that can be used for various applications, including chromatography.
Asakura T., 1988: Effects of differences in charge and hydrophobicity of surface amino acids of hemoglobins on high performance gel permeation chromatography. Journal Of Chromatography Biomedical Applications: 247-254 We studied the elution properties of the carboxy and deoxy forms of hemoglobins A, S, and C in gel-permeation high-performance liquid chromatography using Tsk-Gel-Sw-type columns. Since these [...]
Szejtli J., 1983: Effect of water soluble beta cyclo dextrin polymer on the lipophilicity of polymyxin examined by reversed phase thin layer chromatography. Journal Of Chromatography: 107-110 Tlc showed that the water-soluble.beta.-cyclodextrin polymer forms inclusion complexes with the antibiotic polymyxin, reducing its lipophilicity and its adsorption energy on silica gel. A lower dielectric constant and [...]
Millard M., 1979: Effect of transition metals on recovery from plasma of the growth modulating tri peptide glycylhistidyl lysine. Journal Of Chromatography: 65-74 Isolation and purification of growth-modulating peptides from biological sources is often accompanied by excessive losses of bioactive material. During the isolation of a growth-modulating tripeptide glycylhistidyllsine (Ghl) from human plasma, Cu and [...]
Sanci A., 1986: Effect of the mobile phase composition on the retention behavior of diphenylsilica pre coated plates. Journal Of Chromatography: 323-334 The retention of some rifamycins and steroids on diphenyl bonded pre-coated silica gel plates, in relation to the mobile phase used, was examined by thin-layer chromatography. Neat organic solvents, non-aqueous and aqueous binary [...]
Weiss D.E., 1987: Effect of temperature on hplc separations using 1 4 8 and 18 carbon alkyl chain bonded silica columns. Journal Of Liquid Chromatography: 49-70 The effect of temperature on retention in reversed phase high performance liquid chromatography was studied using a C1, C4, C8 and C18 alkyl chain bonded columns and four groups [...]
Farnworth E.R., 1980: Effect of solvents on the resolution of neutral lipids on chromarods. Journal Of Chromatography: 279-286 The chromatographic behavior of neutral lipids on chromarods, used for the Iatroscan Th-10 analyzer, was evaluated and compared to that observed in adsorption Tlc on silica gel. Various proportions of hexane, diethyl ether and formic acid were [...]
Moats W.A., 1986: Effect of silica support of bonded reversed phase columns of chromatography of some antibiotic compounds. Journal Of Chromatography: 9-78 Chromatographic behavior of three types of antibiotics was investigated on bonded C18 and polymeric reversed-phase columns. With penicillins with carboxylic acid functions only, retention and separations on the two types of columns were [...]
Norman L.M., 1988: Effect of overload of capillary gas liquid chromatographic columns on the equivalent chain lengths of c 18 unsaturated fatty acid methyl esterase. Journal Of Chromatography: 43-52 Column overload causes errors in the estimation of equivalent chain lengths (ECLs) of fatty acid methyl esters (FAMEs), and the extent of these errors on fused-silica [...]
Dzido T., 1979: Effect of mobile phase composition on the partition of phenolic acids in reversed phase thin layer chromatography and high pressure liquid chromatography. Chromatographia: 555-558 Phenolic acid derivatives of cinnamic acid are investigated by reversed-phase Tlc, using silica gel silanized or impregnated with paraffin oil in saturated and sandwich tanks, and by Hplc [...]
Hidiroglou M., 1983: Effect of large oral and intra venous doses of vitamins d 2 and d 3 on vitamin d in milk. Journal Of Dairy Science: 1638-1643 Vitamins D2 and D3 were measured in milk after high performance liquid chromatography of unsaponifiable lipids first on a silica column and then on a reverse-phase column. [...]