strontium encyclopedia
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Get PriceStrontium - an overview | ScienceDirect Topics
Strontium is a "bone-seeking element" that is already used as a treatment for osteoporosis as strontium ranelate because it can reduce bone resorption by increasing the pool of active osteoblasts and decreasing the number of active osteoclasts (Saidak and Marie, 2012; Bose et al., 2013).
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Directions: For adults, take 1 quick release softgel 2 times daily, preferably with meals. Ensure adequate calcium intake (1,000 mg/day) during use. Do not take calcium supplements within two hours before or after strontium use.
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Rubidium-87 is an unstable isotope that has a half-life of about 50 billion years and decays to strontium-87, a stable isotope of strontium. Radioactive dating is performed by observing the ratio of strontium-87 to stronium-86, according to Encyclopedia.
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Strontium chemicals were mostly consumed by the ceramics, glass, and pyrotechnics industries, with smaller amounts consumed by a multitude of other industries. Strontium carbonate is used directly in some applications and also is converted into appropriate downstream chemicals such as strontium chloride, strontium hydroxide, or strontium nitrate.
Strontium – Wikipedia
Strontium ist ein chemisches Element mit dem Elementsymbol Sr und der Ordnungszahl 38. Im Periodensystem steht es in der 5. Periode sowie der 2. Hauptgruppe, bzw. der 2. IUPAC-Gruppe und gehört damit zu den Erdalkalimetallen. Es ist ein weiches (Mohshärte: 1,5) .
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Strontium nitrate Strontium nitrate is an inorganic compound made of the elements strontium and nitrogen with the formula Sr(NO). This colorless solid is used as a red colorant and oxidizer in pyrotechnics.
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Radiolaria. Radiolaria is a diverse grouping of amoeboid protozoa that produce intricate mineral skeletons, typically with a central capsule of cytoplasm separating the cell into inner and outer cytoplasmic portions, called endoplasm (with nuclei) and ectoplasm (or extracapsulum). As protozoans, radiolarians are tiny,...
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Strontium es un elemento chimic de symbolo Sr e numero atomic 38. ...
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Only two minerals, celestite (strontium sulfate) and strontianite (strontium carbonate), however, contain strontium in sufficient quantities to make its recovery practical. Of the two, celestite occurs much more frequently in sedimentary deposits of sufficient size to make development of mining facilities attractive.
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Strontium - encyclopedia article - Citizendium
Strontium is a chemical element, having the chemical symbol Sr. Its atomic number (the number of protons) is 38. It has a standard atomic weight of 87.62 g•mol −1 and is a solid in its elemental form. Strontium is considered to be a member of the "Alkaline earth metal" class of element.
Get PriceStrontium chloride - Dictionary, Encyclopedia and Thesaurus
(Elements & Compounds) a soft silvery-white element of the alkaline earth group of metals, occurring chiefly in celestite and strontianite. Its compounds burn with a crimson flame and are used in fireworks. The radioisotope strontium-90, with a half-life of 28.1 years, is used in nuclear power sources and is a hazardous nuclear fall-out product.
Get PriceSodium-strontium-hydroxide-water - Big Chemical Encyclopedia
Sodium-strontium-hydroxide-water Evzhanov, Kh Andiyasova, G.I., and Beikelieva, L.K., Conditions of the isolation of calcium and strontium with sodium hydroxide in the high mineralized chloride based waters. Chemistry and Water Technology, 1986, (4), 36-38.
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Strontium occurs in nature as the minerals celestine (sulfate) and strontianite (carbonate). It was discovered in 1790 by Adair Crawford in Scotland and isolated by Davy in 1807. Strontium is primarily mined in England.
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Storage proteins serve as reserves of metal ions and amino acids, which can be mobilized and utilized for the maintenance and growth of organisms. They are particularly prevalent in plant seeds, egg whites, and milk. Perhaps the most thoroughly studied storage protein is ferritin, which stores iron.
Get PriceStrontium carbonate | SrCO3 - PubChem
The filered product, a saturated soln containing 12-13% strontium sulfide, is sent to an agitation tank where soda ash is added to cause precipitation of strontium carbonate crystals ... After precipitation is complete, slurry is pumped to vacuum drum filters where nearly complete liq .
Get PriceStrontium, Physical and Chemical Properties | SpringerLink
Strontium is a member of the alkaline-earth family of metals (Group 2 in the periodic table). It is a relatively common element, ranking approximately 15th in natural abundance in the Earth''s crust; it is more plentiful than, for example, sulfur or chromium.
Get PriceWebElements Periodic Table » Strontium » the essentials
Strontium is softer than calcium and decomposes water more vigorously. Freshly cut strontium has a silvery appearance, but rapidly turns a yellowish colour with the formation of the oxide. The finely divided metal ignites spontaneously in air.
Get PriceWebElements Periodic Table » Strontium » isotope data
Strontium: isotope data. Strontium has four stable isotopes and two of them have medical applications. Sr-86 is used for the production of the PET isotope Y-86 which is used in dosimetry prior to Y-90 based radioimmunotherapy. Sr-88 is used for the production of Sr-89 which is the active agent in Metastron TM.
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Abstract. The main uses for strontium is in the form of compounds. End uses include in pyrotechnics, and signals, ferrite ceramic magnets, master alloys, pigments and fillers, and the electrolytic production of zinc. Strontium compounds discussed are acetate, carbonate, hexaferrite, halides, nitrate, oxide, hydroxide, peroxide, sulfate, and titanate.
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This article has been reviewed and approved by the following Topic Editor: Sidney Draggan (other articles). Public Health Statement for Strontium. CAS# . This Public Health Statement is the summary chapter from the Toxicological Profile for strontium.It is one in a series of Public Health Statements about hazardous substances and their health effects.
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Strontium Dog - Wikipedia Fri, 12 Apr 2019 08:23:00 GMT Strontium Dog is a long-running British comics series featuring in the British science fiction weekly 2000 AD, starring Johnny Alpha, a mutant bounty hunter with an array of imaginative gadgets and weapons.. The series was created by writer John
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Strontium (Sr) is a soft, reactive, silvery white metallic element named after the town of Strontian in Scotland, where strontium ore was first found. Its principal ores are strontianite (strontium carbonate) and celestine (strontium sulfate). Strontium was first isolated by Humphry Davy by electrolysis in 1808. It is still isolated by electrolysis of the chloride or reduction of the oxide.
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A trace mineral, strontium is a beneficial alkaline earth metal that occurs naturally in soil and drinking water. With a close molecular similarity to calcium, strontium has many of the same beneficial effects, such as helping to strengthen bones, protect joints and support dental health.
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Strontium-82 isotopo de strontium[*], composito chimic: subclasse de strontium: numero atomic: 38 numero de neutrones: 44 decomposition: Rubidium-82 vita medie: 25,34±0,02 die
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Aug 11, 2018· Nonfiction includes two reference works on Japan containing much of sf interest, The Anime Encyclopedia (2001; exp 2006) with Helen McCarthy and The Dorama Encyclopedia (2003) with Motoko Tamamuro, and, most ambitiously, Anime: A History (2013), which examines Japanese animation (see Cinema) from about 1912.
Get PriceStrontium | Define Strontium at Dictionary
[strŏn′chē-əm, -tē-əm] Sr. A soft, silvery metallic element of the alkaline-earth group that occurs naturally only as a sulfate or carbonate. One of its isotopes is used in the radiometric dating of rocks. Because strontium salts burn with a red flame, they are used to make fireworks and signal flares.
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