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thoria    
钍土; 钍土; 氧化钍; 二氧化钍

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  • Thorium dioxide - Wikipedia
    Also known as thoria, it is mainly a by-product of lanthanide and uranium production [4] Thorianite is the name of the mineralogical form of thorium dioxide It is moderately rare and crystallizes in an isometric system The melting point of thorium oxide is 3300 °C – the highest of all known oxides
  • Thorium Dioxide | O2Th | CID 14808 - PubChem
    Thoria forms double oxides with the alkaline earths, eg, thorium barium oxide (12230-90-9) Double oxides with the alkali metals are of the type sodium thorium oxide (12058-67-2) It also forms oxides with germanium, titanium, vanadium, niobium, tantalum, and molybdenum
  • THORIA Definition Meaning - Merriam-Webster
    The meaning of THORIA is a powdery white oxide of thorium ThO2 used especially as a catalyst and in crucibles and refractories and optical glass
  • Thorium dioxide - Simple English Wikipedia, the free encyclopedia
    Thorium dioxide, also known as thorium(IV) oxide or thoria, is a chemical compound made of thorium and oxygen It has the chemical formula ThO 2 Like every thorium compound, it is radioactive It can be found as the mineral thorianite Thorianite is similar to pitchblende, but rarer [source?]
  • Thoria - an overview | ScienceDirect Topics
    Standard thoria plots One of the advantages that thoria presents is that it is very stable with respect to high temperatures Once a thoria produced powder is high fired to 1600°C, it is virtually physically stable The surface chemistry is also stable with no change in stoichiometry
  • Thoria - definition of thoria by The Free Dictionary
    Define thoria thoria synonyms, thoria pronunciation, thoria translation, English dictionary definition of thoria n See thorium dioxide American Heritage® Dictionary of the English Language, Fifth Edition Copyright © 2016 by Houghton Mifflin Harcourt Publishing
  • Thorium dioxide - chemeurope. com
    Thoria has the fluorite crystal structure Few other binary dioxides have this structure: uranium dioxide, hafnium dioxide and cerium dioxide, not to mention plutonium dioxide The band gap of thoria is about 6 eV Applications Thorium dioxide is used as a stabilizer in tungsten electrodes in TIG welding,electron tubes, and aircraft engines
  • Thorium - Wikipedia
    Most thorium applications use its dioxide (sometimes called "thoria" in the industry), rather than the metal This compound has a melting point of 3300 °C (6000 °F), the highest of all known oxides; only a few substances have higher melting points [57]
  • Thorium dioxide - Wikiwand
    Thorium dioxide (ThO2), also called thorium(IV) oxide, is a crystalline solid, often white or yellow in colour Also known as thoria, it is mainly a by-product
  • Chemistry:Thorium dioxide - HandWiki
    Thorium dioxide (ThO2), also called thorium(IV) oxide, is a crystalline solid, often white or yellow in colour Also known as thoria, it is produced mainly as a by-product of lanthanide and uranium production [4] Thorianite is the name of the mineralogical form of thorium dioxide





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