Cyclam ist als so genannter Azamacrocyclus das Stickstoffanalogon zum Kronenether 1,4,8,11-Tetraoxa-cyclotetradecan (14-Krone-4) und bildet mit zweiwertigen Ionen von Übergangsmetallen, z. B. Kupfer oder Nickel, stabile Komplexe.Die vier sekundären Aminogruppen des vierzehngliedrigen aneN 4-Ring-systems bilden dabei einen vierzähnigen Komplexliganden, dessen Metallchelate in sechs
Bentonite Wikipedia Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, has been used to describe clay beds of uncertain origin. For industrial
Calcium disodium EDTA is found in food, cosmetic and industrial products and used to treat metal toxicity. The ADI is 1.1 mg per pound (2.5 mg per kg) of body weight per day — much higher than
Unrefined sea salt contains small amounts of magnesium and calcium halides and sulfates, traces of algal products, salt-resistant bacteria and sediment particles.The calcium and magnesium salts confer a faintly bitter overtone, and they maké unrefined séa salt hygroscopic (i.e., it gradually absorbs moisture from air if stored uncovered). ). Algal products contribute a mildly "fishy" or "sea
The calcium sulfate is soluble in water and hence the limestone dissolves and crules. Effects on Sculptures: There are many examples in both the U. S. and Europe of the corrosive effects of acid rain on sculptures. Many a few have been preserved by bringing
Imerys delivers high value-added, functional solutions to a great nuer of industries, ranging from process manufacturing to consumer goods. Navigating Covid-19 together None of us has ever experienced a situation like the one we are in now. Everyone is
ChEBI Name cobalt dichloride ChEBI ID CHEBI:35696 Definition A cobalt salt in which the cobalt metal is in the +2 oxidation state and the counter-anion is chloride. It is used as an indior for water in
Magnesium adalah suatu unsur kimia dalam tabel periodik yang memiliki laang Mg dan nomor atom 12. Ia berupa padatan abu-abu mengkilap yang memiliki kemiripan fisik dengan lima unsur lainnya pada kolom kedua (golongan 2, atau logam alkali tanah) tabel periodik: semua unsur golongan 2 memiliki konfigurasi elektron yang sama pada kelopak
Metal carboxylates are more commonly referred to as driers or sicives. They are an organometallic salt, formed by the reaction of a metallic raw material and organic acid(s) dissolved in a hydrocarbon solvent. When added to alkyd based paints they markedly
A rare-earth element (REE) or rare-earth metal (REM), as defined bi IUPAC, is ane o a set o seventeen chemical elements in the periodic cairt, specifically the fifteen lanthanides, as well as scandium an yttrium.Scandium an yttrium are considered rare-earth
Calcium hypochlorite will be added at levels (as Ca(OCl)2 or measured as free chlorine) not to exceed (1) 400 ppm in water used in processing fruits, vegetables, and nuts; (2) 50 ppm in water used in the chiller, eviscerating line, and on-line reprocessing line for poultry; (3) 250 ppm in scalder water for poultry; (4) 5 ppm in process water for meat; and (5) 10 ppm in water used in the
Metal soaps can enhance production processes, and, in many cases, they enable manufacturers to develop products with smooth surfaces and low friction. Appliions in diverse industries In the plastics industry, metal soaps are used in the manufacture of PVC products, and during the processing of numerous plastics, including polyamide, polyethylene, polypropylene, ABS and fiber-reinforced
List of elements Atomic Nuer Name Syol Group Period Nuer Block State at STP Occurrence Description 1 Hydrogen H 1 1 s Gas Primordial Non-metal 2 Helium He 18 1 s Gas Primordial Noble gas 3 Lithium Li 1 2 s Solid Primordial Alkali metal 4 Beryllium
Calcium fluoride is used in the thermal plasma process for the purifiion of silicon; in the manufacture of fluoroaluminate glass; and fluorophosphate glasses; in the removal of lead in flotation waste; in the manufacture of clean steel without deoxidation with aluminum; in the electrochemical preparation of lanthanum; in the leaching process to treat domestic manganese-bearing silie
Calcium Sodium Borosilie and Calcium Aluminum Borosilie are types of borosilie glasses that may be used in cosmetics and personal care products in the form of flakes. These ingredients are predominantly used in makeup and nail polish products.
Die UN-Nummer, auch Stoffnummer genannt, ist eine Kennnummer, die für alle gefährlichen Stoffe, die gleichzeitig als gefährliche Güter (Gefahrgut) gelten, festgelegt wird. Sie ist die untere Nummer auf den auf allen Gefahrguttransporten angebrachten orangefarbigen Warntafeln (Gefahrentafeln) und beschreibt die Zusammensetzung (Art) des
WikiMili is a Free Encyclopedia with a beautiful Wikipedia reader for web and mobile.Find something interesting to watch in seconds. Kirinia roxelana, the lattice brown, is a butterfly in the family Nymphalidae found in south-eastern Europe and the Near East.It is
Calcium is a see also of lime. Lime is a see also of calcium. As nouns the difference between lime and calcium is that lime is (chemistry) a general term for inorganic materials containing calcium, usually calcium oxide or calcium hydroxide; quicklime or lime can be a deciduous tree of the genus tilia , especially ; the linden tree, or its wood or lime can be a green citrus fruit, somewhat
Généralités et histoire de la découverte du cadmium Le cadmium est un élément du groupe 12 et de la période 5.Stricto sensu, c''est un métal pauvre, qui ne répond pas à la définition des éléments de transition par l''IUPAC  ; en pratique cependant, il est très souvent assimilé aux métaux de transition dans les manuels et de très noreux ouvrages.
Calcium phosphate | Ca3(PO4)2 or Ca3O8P2 | CID 24456 - structure, chemical names, physical and chemical properties, classifiion, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. /Ortho/ phosphate is absorbed from, and to a limited extent secreted into, the gastrointestinal tract. . Transport of phosphate from the gut lumen is an
Calcium sulfate is a common laboratory and industrial chemical. In the form of γ-anhydrite (the nearly anhydrous form), it is used as a desiccant . While natural, unrefined calcium sulfate is a translucent, crystalline white rock, a form sold under the name Drierite® appears blue or pink due to impregnation with cobalt chloride , which functions as a moisture indior.
Calcium the Latin ''calx'' meaning lime 2 4 40.078(4) 1.54 1115 1757 0.647 1 41500 21 Sc Scandium Scandinavia (with the Latin name Scandia) 3 4 44.955912(6) 2.989 1814 3109 0.568 1.36 22 22 Ti Titanium Titans, the sons of the Earth goddess of Greek 4 4
Calcium nitrate soln (0.5, 0.25 M), alone or in coination with sucrose, were toxic to stem and flower (carnation) tissue prior to freezing. Calcium nitrate alone offered no protection at -4 C. Flowers pretreated with 0.125 M calcium nitrate appeared translucent or
In its pure elemental state, calcium is a soft, silvery-white alkaline earth metal. It is important to note, however, that calcium is never found in this isolated state in nature, but exists
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Calcium is a reactive, soft metal that is a meer of the alkaline earth elements. It frequently serves as an alloying agent for other metals like aluminum and beryllium industrial materials like cement and mortar are composed of calcium compounds like calcium carbonate .