In 2007 waren er in Noorwegen plannen voor het opstarten van een. Thorium Sulfate is a moderately water and acid soluble Thorium source for uses compatible with sulfates.Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal.Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. The number of electrons in each of thorium's shells is [2, 8, 18, 32, 18, 10, 2] and its electron configuration is [Rn] 6d 2 7s 2 . This mantle, which also contains about 1% cerium oxide, glows with a bright white light when it is heated in a gas flame. Die belangstelling voor thorium heeft een even banale als dwingende achtergrond: de 37 kerncentrales die China nu in gebruik heeft, en de 20 die nu in aanbouw zijn, hebben allemaal uranium nodig. "Preliminary Fabrication Studies of Alternative LMFBR Carbide Fuels", "Convenient Access to the Anhydrous Thorium Tetrachloride Complexes ThCl, "Periodic Table of Elements: Los Alamos National Laboratory", https://en.wikipedia.org/w/index.php?title=Thorium(IV)_chloride&oldid=1004559947, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License. H4O4Th. [7], Thorium(IV) chloride is an intermediate in the purification of thorium, which can be effected by, Except where otherwise noted, data are given for materials in their, Cantat, Thibault; Scott, Brian L.; Kiplinger, Jaqueline L. "Convenient Access to the Anhydrous Thorium Tetrachloride Complexes ThCl. Thorium (IV) sulfide (Th S 2) is an inorganic chemical compound composed of one thorium atom ionically bonded to two atoms of sulfur. Thorium hydroxide. The number of electrons in each of thorium's shells is [2, 8, 18, 32, 18, 10, 2] and its electron configuration is [Rn] 6d 2 7s 2 . 6d2. Thorium oxide (ThO 2), one of thorium's compounds, has many uses. Th. Element Thorium - Th. Thorium is daarentegen wel in zeer grote hoeveelheden beschikbaar. Thorium dioxide is also used in the manufacture of specialty glass and as a catalyst. Like all the other actinides, thorium is radioactive and has sometimes been used in the production of nuclear energy. This information is only displayed if the substance is well–defined, its identity is not claimed confidential and there is sufficient information available in ECHA’s databases for ECHA’s … Thorium, when alloyed with magnesium, imparts high strength and creep resistance at elevated temperatures. ; Thorium was the first set of materials created for the mod when tConfig first came out, and its name has since stuck as the … Thorium chemical properties define its chemical formula, isotopes, oxides, electronegativity chemical properties, health and environmental effects of thorium. The one device in which most people are likely to have seen thorium … 12688-06-1. From Wikipedia, the free encyclopedia Thorium (IV) chloride (Th Cl 4) is an inorganic chemical compound. Het land beschikt echter nauwelijks over die grondstof. 166732. Common chemical compounds are also provided for many elements. Synonyms. 228Th. Finally, the crude thorium hydroxide is dissolved in nitric acid to produce a thorium nitrate-containing feed … Environmental effects of thorium. The actinides have an atomic number between 90 and 103. Een thoriumreactor is een kernreactor die kernsplijting van uranium-233, ter plaatse geproduceerd uit thorium, als energiebron gebruikt.De gesmoltenzoutreactor (Engels: Molten Salt Reactor (MSR) of soms Liquid Fluoride Thorium Reactor (LFTR)) wordt populair vaak aangeduid als 'thoriumreactor', hoewel ook een conventionele kerncentrale thorium als brandstof kan … Deze pagina is voor het laatst bewerkt op 23 feb 2021 om 11:03. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. The molecular formula identifies each type of element by its chemical symbol and identifies the number of atoms of each element found in one discrete molecule of the substance. Similar to other thorium complexes thorium(IV) chloride has a high melting point 770 °C (1,418 °F) and a boiling point of 921 °C (1,690 °F). New thorium(IV) hydroxide is soluble in acid but its solubility will decrease when older. Thorium(IV) hydroxide can be produced by reacting sodium hydroxide and soluble thorium salts.. Find physical and chemical properties of Thorium (Th) like element name, symbol, atomic number, atomic weight, density, color, melting point, boiling point, physical state at room temperature, isotopes, compounds, half life period, category, year of discovery and more It is soft, ductile and can be cold-rolled, swaged, extruded, and drawn. These hygroscopic salts are water-soluble and white, at room temperature. The ground state electronic configuration of neutral thorium is [ Rn ]. 65 Components This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm. Thorium (IV) fluoride (Th F 4) is an inorganic chemical compound. Thorium (atomic symbol: Th, atomic number: 90) is a Block F, Group 3, Period 7 element with an atomic weight of 232.03806. Thorium (atomic symbol: Th, atomic number: 90) is a Block F, Group 3, Period 7 element with an atomic weight of 232.03806. Comprehensive data on the chemical element Thorium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Thorium. Chemical Formula: Th This page was last edited on 3 February 2021, at 05:35. [7], ThCl4 reacts with Lewis bases to give molecular adducts, such as ThCl4(DME)2 and ThCl4(TMEDA)2. Thorium has a very high melting point, and thorium oxide has the highest melting point (3300°C) of all oxides. Electrolysis of anhydrous thorium(IV) chloride in fused mixture of NaCl and KCl. Edited by G. Brauer, Academic Press, 1963, NY. Thorium is in 1828 ontdekt door de Zweedse chemicus Jöns Jacob Berzelius.Het element is vernoemd naar de Noorse god van de donder, Thor.. Toepassingen. It is dark brown and has a melting point of 1905 °C. De eerste praktische toepassing van thorium was in gaskousjes in draagbare gaslampen, door Welsbach, aan het einde van de 19e eeuw.Deze gaskousjes bestonden uit thoriumoxide plus 1% … Thorium tetranitrate hydrate 13823-29-5 1993-04-24 New Jersey Right To Know Components Thorium tetranitrate hydrate CAS-No. It is primarily used in a type of lantern mantel known as a Welsbach mantle. Thorium is an element that was discovered by a Swedish chemist named Jons Jakob Berzelius in … Thorium(IV) Chloride can be produced in a variety of ways, but the most common starting reactant is either thorium dioxide or Thorium (IV) orthosilicate. Thorium belongs to the actinide family. Trivia [edit | edit source]. Thorium react slowly with water; thorium can react with concentrated nitric acid and hydrogen chloride. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. Synonyms. It is a white hygroscopic powder which can be produced by reacting thorium with fluorine gas. 13823-29-5 Revision Date 1993-04-24 California Prop. Thorium(IV) chloride (ThCl4) is an inorganic chemical compound. Thorium metal is silvery and tarnishes black when exposed to air, forming the dioxide. Other articles where Thorium phosphate is discussed: thorium processing: Acidic and alkaline digestion: …aqueous ammonia, first precipitating hydrated thorium phosphate as a gelatinous mass and then metathesizing the thorium phosphate to thorium hydroxide. Environmental stability: Thorium will slowly react with water, oxygen, and other compounds to form a wide variety of tungsten compounds. Chemical Name: Thorium. ThO2, the chemical formula of thorium oxide, has accordingly found use in a high-temperature application. Thorium atoms have 90 electrons and the shell structure is 2.8.18.32.18.10.2. Ontdekking. General Thorite Information : Chemical Formula: ThSiO4 : Composition: Molecular Weight = 324.12 gm Thorium 71.59 % Th 81.46 % ThO 2: Silicon 8.67 % Si 18.54 % SiO 2: Oxygen 19.74 % O: 100.00 % 100.00 % = TOTAL OXIDE Thorium is a tetravalent element. [2] These hygroscopic salts are water-soluble and white, at room temperature. Thorium 228. 1. p. 1203. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 0.23 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 482.98 (Adapted Stein & Brown method) Melting Pt (deg C): 188.60 (Mean or Weighted MP) VP(mm Hg,25 deg C): 4.24E … Find Similar Structures. 14274-82-9. Thorium is moderately hard, malleable, and has a high melting point. A catalyst is a substance used to speed up or slow down a chemical reaction without undergoing any change itself. Thorium nitrate | Th(NO3)4 or N4O12Th | CID 26293 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Thorium-228. Thorium is an electropositive actinide whose chemistry is dominated by the +4 oxidation state; it is quite reactive and can ignite in air when finely divided. Thorium with atomic number 90 and symbol (Th), in its pure form, is a silvery white metal which is stable in air and remains lustrous for several months. 7s2 … De tekst is beschikbaar onder de licentie. Thorium(IV) chloride does not appear naturally. At temperatures above 500 °C, it reacts with atmospheric moisture to produce ThOF 2. This is based on the number of localities entered for mineral species and is therefore slanted towards minerals interesting to collectors with less coverage of common rock-forming-minerals so it does not give an undistorted distribution of Thorium … Thorium tetrahydroxide. Thorium(IV) hydroxide is an inorganic compound with a chemical formula Th(OH) 4.. Production. In addition to the anhydrous ThCl 4, two hydrates have been reported: ThCl 4 (H 2 O) 4 and ThCl 4 (H 2 O) 8. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. In another two-step method, thorium metal reacts with ammonium chloride: The hexachloride salt is then heated at 350 °C under a high vacuum to produce ThCl4. Thorium, radioactive metallic chemical element, chemical symbol Th, atomic number 90, one of the actinoid series of elements. Reactions. Vol. The chemical symbol for Thorium is Th. Effect of material on plants or animals: Due to the product size and the product’s form, no unusual environmental effects are … Learn applications, properties and health effects of Thorium One method, a carbothermic reaction, 700 °C to 2600 °C, involving thorium oxides and carbon in a stream of chlorine gas: The chlorination reaction can be effected with carbon tetrachloride:[5][6]. ››More information on molar mass and molecular weight. In addition to the anhydrous ThCl4, two hydrates have been reported: ThCl4(H2O)4[1] and ThCl4(H2O)8. P. Ehrlich "Titanium, Zirconium, Hafnium, and Thorium" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Structure. Molecular Formula. ThS 2 atopts the same lattice structure as TiO 2. The structure of thorium(IV) chloride features 8-coordinate Th centers with doubly bridging chloride ligands. The name "Thorium" is inspired by a similarly named teal colored ore in the popular MMORPG World of Warcraft.. Molecular Formula. Thorium is a weakly radioactive metallic chemical element with the symbol Th and atomic number 90. Thorium is silvery and tarnishes black when it is exposed to air, forming thorium dioxide; it is moderately hard, malleable, and has a high melting point. Thorium, isotope of mass 228. lawrencium, International Thorium Energy Organisation - www.IThEO.org, Thorium fuel cycle - Potential benefits and challenges, http://www.business-standard.com/article/pti-stories/over-1-25-mt-thorium-reserve-found-in-3-years-113081400960_1.html, http://www.scribd.com/doc/105448071/Thorium-Resources-in-Rare-Earth-Elements-Ragheb-M-Aug-2011, http://minerals.usgs.gov/minerals/pubs/commodity/thorium/mcs-2014-thori.pdf, http://www.aesj.or.jp/~recycle/gl2005pr1-4mr.sokolov.pdf, https://nl.wikipedia.org/w/index.php?title=Thorium&oldid=58365161, Wikipedia:Lokale afbeelding anders dan op Wikidata, Creative Commons Naamsvermelding/Gelijk delen, Als promotor bij de katalytische werking van, Thorium is ook een geschikt element voor de productie van nucleaire brandstof. These are the elements that are placed on Row7 of the periodic table. [3], ThCl4 was an intermediate in the original isolation of thorium metal by Jons Jacob Berzelius.[4]. This ore was in turn inspired by the chemical element Thorium, which is a radioactive actinide metal. Most widespread minerals containing Thorium; This list of minerals containing Thorium is built from the mindat.org locality database. Thorium Oxide (thoria) has a melting point of 5,972 degrees Fahrenheit which is one of the highest known for a stable compound.