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.
Hildenbrand, S.; Ninnemann, H., 1994: Kinetics of phytoalexin accumulation in potato tubers of different genotypes infected with Erwinia carotovora ssp. atroseptica. Physiological and Molecular Plant Pathology 44(5): 335-347 The time-courses of rotting and phytoalexin accumulation in tuber soft rot tissue of two cultivars of Solanum tuberosum subspecies tuberosum were examined from 1-7 days after inoculation [...]
Khalil, A. H.; El Adawy, T. A., 1994: Isolation, identification and toxicity of saponin from different legumes. Food Chemistry. 50(2): 201 Saponin extracts were prepared from peas, beans and soya bean seeds by four different methods. Two biological assays were developed for measuring toxicity of crude saponin extracts based on haemolytic activity and fish mortality. [...]
Krishna, A. G. Gopala, 1993: Isolation and identification of the causative factors responsible for color fixation in rice bran oil. Journal Of The American Oil Chemists’ Society. 70(8): 785-788 To understand the chemical nature of the dark coloring constituents responsible for color fixation in rice brain oil, crude and dewaxed rice bran oils of 6.8% [...]
Rovira, Ramon; Ribera, Francesc; Sanchis, Vicente; Canela, Ramon, 1993: Improvements in the quantitation of patulin in apple juice by high-performance liquid chromatography. Journal Of Agricultural & Food Chemistry. 41(2): 214-216 A method is described for Sep-Pak silica cartridge purification of patulin from apple juice followed by reversed-phase high-performance liquid chromatography (Hplc) determination. The method has [...]
Ishii, Yoichi; Kobori, Itsuro; Araki, Yasuo; Kurogochi, Shin; Iwaya, Koji; Kagabu, Shinzo, 1994: HPLC determination of the new insecticide imidacloprid and its behavior in rice and cucumber. Journal Of Agricultural & Food Chemistry. 42(12): 2917-2921 A rapid, sensitive, and reliable Hplc method has been developed for the determination of imidacloprid residue in nine kinds of [...]
Moloshok, Thomas D.; Terhune, Brian T.; Lamboy, Jana S.; Hoch, H. C., 1994: Fractionation of extracellular matrix components from urediospore germlings of Uromyces. Mycologia. 86(6): 787-794 Secreted proteins and other components of the Uromyces appendiculatus urediospore germling extracellular matrix were fractionated by a scheme employing a hydrophobic-silanized, fumed silica matrix. Two fractions of secreted proteins [...]
Azam, Mohibb E.; Rengasamy, Seeni; Parmar, Balraj S., 1995: Estimation of azadirachtin-A content of emulsifiable and solution concentrates of neem. Journal Of Aoac International. 78(4): 893-896 A column chromatographic cleanup method to remove aliphatic and aromatic solvent components and different surfactants present in formulated neem was developed. A glass column containing silica gel (60-120 British [...]
Nagabhushana, K. S.; Ravindranath, B., 1995: Efficient medium-scale chromatographic group separation of anacardic acids from solvent-extracted cashew nut (Anacardium occidentale) shell liquid. Journal of Agricultural and Food Chemistry 43(9): 2381-2383 Biologically active anacardic acids as a group have been separated from the toxic phenolic constituents (cardols and cardanols) of the solvent-extracted cashew nut shell liquid [...]
Mortimer, Richard D.; Weber, Dorcas F., 1993: Determination of residual imazethapyr in soybeans by gas chromatography/nitrogen-phosphorus detection. Journal Of Aoac (association Of Official Analytical Chemists) International. 76(2): 377-381 Imazethapyr, a recently introduced imidazolinone herbicide, is registered for use on soybeans and other legumes in the United States and Canada. Its maximum allowed residue level in [...]
Kondo, Fusao; Nagata, Sachiko; Tsai, Chin En; Saitanu, Kriengsak, 1994: Determination of pyridonecarboxylic acids in plasma by reverse-phase high-performance liquid chromatography. Microbios. 77(312): 181-189 A simple qualitative and quantitative determination for pyridonecarboxylic acids including nalidixic acid (Na), oxolinic acid (Oa) and pipemidic acid (Ppa) in chicken plasma was carried out by microbiological, spectrophotometric, thin-layer chromatographic [...]