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Sodium Silicate
Sodium silicate is a generic name for chemical compounds with the formula or ·, such as sodium metasilicate (), sodium orthosilicate (), and sodium pyrosilicate (). 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound. A compound can be transformed into a different substance by a chemical reaction, which may involve interactions with other substances. In this process, bonds between atoms may be broken or new bonds formed or both. There are four major types of compounds, distinguished by how the constituent atoms are bonded together. Molecular compounds are held together by covalent bonds; ionic compounds are held together by ionic bonds; intermetallic compounds are held together by metallic bonds; coordination complexes are held together by coordinate covalent bonds. Non-stoichiometric compounds form a disputed marginal case. A chemical formula specifies the number of atoms of each element in a compound molecule, usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgius Agricola
Georgius Agricola (; born Georg Bauer; 24 March 1494 – 21 November 1555) was a German Humanist scholar, mineralogist and metallurgist. Born in the small town of Glauchau, in the Electorate of Saxony of the Holy Roman Empire, he was broadly educated, but took a particular interest in the mining and refining of metals. He was the first to drop the Arabic definite article ''al-'', exclusively writing ''chymia'' and ''chymista'' in describing activity that we today would characterize as chemical or alchemical, giving chemistry its modern name. For his groundbreaking work '' De Natura Fossilium'' published in 1546, he is generally referred to as the father of mineralogy and the founder of geology as a scientific discipline.Rafferty, John P. (2012). ''Geological Sciences; Geology: Landforms, Minerals, and Rocks''. New York: Britannica Educational Publishing, p. 10. He is well known for his pioneering work '' De re metallica libri XII'', that was published in 1556, one yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soda Glass
Soda or SODA may refer to: *Soft drink, a sweetened, carbonated, and usually flavored drink Chemistry * Some chemical compounds containing sodium ** Sodium carbonate, washing soda or soda ash ** Sodium bicarbonate, baking soda ** Sodium hydroxide, caustic soda ** Sodium oxide, an alkali metal oxide * Soda glass, a common glass made with sodium carbonate or sodium oxide * Soda lake, an alternate generic name for a salt lake, with high concentration of sodium carbonates * Soda lime, a mixture of sodium, calcium, and potassium hydroxides * Soda pulping, a process for paper production using sodium compounds Computing * SODA (operating system) * Service-oriented development of applications * Service-oriented device architecture, to enable devices to be connected to a service-oriented architecture * Soda PDF, a family of applications used on .pdf files * Symposium on Discrete Algorithms, an annual academic conference in computer science Entertainment * '' Czech Soda'' (Česká ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Krätzer
Hermann or Herrmann may refer to: * Hermann (name), list of people with this name * Arminius, chieftain of the Germanic Cherusci tribe in the 1st century, known as Hermann in the German language * Éditions Hermann, French publisher * Hermann, Missouri, a town on the Missouri River in the United States ** Hermann AVA, Missouri wine region * The German SC1000 bomb of World War II was nicknamed the "Hermann" by the British, in reference to Hermann Göring * Herrmann Hall, the former Hotel Del Monte, at the Naval Postgraduate School, Monterey, California * Memorial Hermann Healthcare System, a large health system in Southeast Texas * The Herrmann Brain Dominance Instrument (HBDI), a system to measure and describe thinking preferences in people * Hermann station (other), stations of the name * Hermann (crater), a small lunar impact crater in the western Oceanus Procellarum * Hermann Huppen, a Belgian comic book artist * Hermann 19, an American sailboat design built by Ted He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emil Kopp
Emil Kopp (3 March 1817 – 30 November 1875) was a French chemist. Biography Kopp was born on 3 March 1817 in Wasselonne. He became in 1847 a professor of toxicology and chemistry at the École supérieure de Pharmacie at Strasbourg. Because of his participation in the demonstration on "revolutionary day" 13 June 1849, he was forced to leave France, subsequently settling in Switzerland.Kopp, Emile Historischen Lexikon der Schweiz In 1849 he became a professor of physics and chemistry at , and in 1852 a chemist to a Turkey red factory near |
Leopold Wolff
Leopold may refer to: People * Leopold (given name), including a list of people named Leopold or Léopold * Leopold (surname) Fictional characters * Leopold (''The Simpsons''), Superintendent Chalmers' assistant on ''The Simpsons'' * Leopold Bloom, the protagonist of James Joyce's ''Ulysses'' * Leopold "Leo" Fitz, on the television series ''Agents of S.H.I.E.L.D.'' * Leopold "Butters" Stotch, on the television series ''South Park'' * General Leopold von Flockenstuffen, on the BBC sitcom Allo 'Allo!'' * Leopold the Cat, the protagonist of a Soviet/Russian animated short film series * Leopold, 3rd Duke of Albany, a lead character of '' Kate & Leopold'', a 2001 romantic comedy film * Leopold Slikk, an alias of Norman Kochanowski known for Angry German Kid Businesses *Leopold (publisher), a Netherlands-based publishing company *Leopold Bros., an American micro-distiller * Leopold Cafe, Colaba, Mumbai, India (attacked during the 26 November 2008 Mumbai attacks) * Leopold's Ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicic Acid
In chemistry, a silicic acid () is any chemical compound containing the element silicon attached to oxide () and hydroxyl () groups, with the general formula or, equivalently, . Orthosilicic acid is a representative example. Silicic acids are rarely observed in isolation, but are thought to exist in aqueous solutions, including seawater, and play a role in biomineralization. They are typically colorless weak acids that are sparingly soluble in water. Like the silicate anions, which are their better known conjugate bases, silicic acids are proposed to be oligomeric or polymeric. No Monomer, simple silicic acid has ever been identified, since these species are primarily of theoretical interest. Depending on the number of silicon atoms present, there are mono- and polysilicic (di-, tri-, tetrasilicic, etc.) acids. Well defined silicic acids have not been obtained in a form that has been characterized by X-ray crystallography. Examples Reactions Silicic acids can be seen as hy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Nepomuk Von Fuchs
Johann Nepomuk von Fuchs (15 May 1774 – 5 March 1856) was a German chemist and mineralogist, and Kingdom of Bavaria, royal Bavarian privy councillor. Biography He was born at Mattenzell, near Falkenstein, Bavaria, Falkenstein in the Bavarian Forest. In 1807 he became professor of chemistry and mineralogy at the Ludwig Maximilian University of Munich, Ludwig Maximilian University, which was located in Landshut at the time, and in 1823 conservator of the mineralogical collections at Munich, where he was appointed professor of mineralogy three years later, when the university was relocated. He retired in 1852, was ennobled by the Maximilian II of Bavaria in 1854, and died at Munich on 5 March 1856. He is largely known for his mineralogical observations and for his work on waterglass (sodium silicate). He used it to develop stereochromy, a kind of fresco painting where the pigments are fixed with waterglass. Historically, the substance was sometimes referred to as "Fuchs's solubl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Dioxide
Carbon dioxide is a chemical compound with the chemical formula . It is made up of molecules that each have one carbon atom covalent bond, covalently double bonded to two oxygen atoms. It is found in a gas state at room temperature and at normally-encountered concentrations it is odorless. As the source of carbon in the carbon cycle, atmospheric is the primary carbon source for life on Earth. In the air, carbon dioxide is transparent to visible light but absorbs infrared, infrared radiation, acting as a greenhouse gas. Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater. It is a trace gas Carbon dioxide in Earth's atmosphere, in Earth's atmosphere at 421 parts per million (ppm), or about 0.042% (as of May 2022) having risen from pre-industrial levels of 280 ppm or about 0.028%. Burning fossil fuels is the main cause of these increased concentrations, which are the primary cause of climate change.IPCC (2022Summary for pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcination
Calcination is thermal treatment of a solid chemical compound (e.g. mixed carbonate ores) whereby the compound is raised to high temperature without melting under restricted supply of ambient oxygen (i.e. gaseous O2 fraction of air), generally for the purpose of removing impurities or volatile substances and/or to incur thermal decomposition. The root of the word calcination refers to its most prominent use, which is to remove carbon from limestone (calcium carbonate) through combustion to yield calcium oxide (quicklime). This calcination reaction is CaCO3(s) → CaO(s) + CO2(g). Calcium oxide is a crucial ingredient in modern cement, and is also used as a chemical flux in smelting. Industrial calcination generally emits carbon dioxide (). A calciner is a steel cylinder that rotates inside a heated furnace and performs indirect high-temperature processing (550–1150 °C, or 1000–2100 °F) within a controlled atmosphere. Etymology The process of calcination ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Carbonate
Potassium carbonate is the inorganic compound with the formula . It is a white salt, which is soluble in water and forms a strongly alkaline solution. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass. Commonly, it can be found as the result of leakage of alkaline batteries. Potassium carbonate is a potassium salt of carbonic acid. This salt consists of potassium cations and carbonate anions , and is therefore an alkali metal carbonate. History Potassium carbonate is the primary component of potash and the more refined pearl ash or salt of tartar. Historically, pearl ash was created by baking potash in a kiln to remove impurities. The fine, white powder remaining was the pearl ash. The first patent issued by the US Patent Office was awarded to Samuel Hopkins in 1790 for an improved method of making potash and pearl ash. In late 18th-century North America, before the development of baking pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Silicate
Potassium silicate is the name for a family of inorganic compounds. The most common potassium silicate has the formula K2SiO3, samples of which contain varying amounts of water. These are white solids or colorless solutions.Gerard Lagaly, Werner Tufar, A. Minihan, A. Lovell "Silicates" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, 2005. Synthesis, structure, reactions Potassium silicate can be synthesized in the laboratory by treating silica with potassium hydroxide, according to this idealized equation: : These solutions are highly alkaline. Addition of acids causes the reformation of silica. K2SiO3 adopts a chain or cyclic structures with interlinked monomers. Each Si is tetrahedral. Uses Woodwork protection against fire Impregnation of wood with a potassium silicate solution is an easy and low-cost way for rendering the woodwork of houses secure against catching fire. The woodwork is first saturated with a diluted and nearly neutral solution of potash si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
