Thorium Spheres

High Purity Th Spheres
CAS 7440-29-1

Product Product Code Order or Specifications
(2N) 99% Thorium Spheres TH-M-02-SPH Contact American Elements
(2N5) 99.5% Thorium Spheres TH-M-025-SPH Contact American Elements
(3N) 99.9% Thorium Spheres TH-M-03-SPH Contact American Elements
(3N5) 99.95% Thorium Spheres TH-M-035-SPH Contact American Elements
(4N) 99.99% Thorium Spheres TH-M-04-SPH Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Th 7440-29-1 166489 23960 N/A 231-139-7   N/A [Th] InChI=1S/Th ZSLUVFAKFWKJRC-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance Density Tensile Strength Melting Point Boiling Point Thermal Conductivity Electrical Resistivity Eletronegativity Specific Heat Heat of Vaporization Heat of Fusion MSDS
232.03 N/A 232.03 kg/m³ 144 MPa 1842 °C 4820 °C N/A N/A N/A N/A N/A N/A Safety Data Sheet

High Purity SphereAmerican Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopeia/British Pharmacopeia) and follows applicable ASTM testing standards.See safety data and research below and pricing/lead time above. American Elements specializes in producing Thorium as ribbon in various thicknesses and sizes. Most ribbon is rolled for use in coating and thin film Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Organometallic and Chemical Vapor Deposition (MOCVD) for specific applications such as fuel cells and solar energy. Thicknesses up to 0.02" and widths up to 1" are available for most metals. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as other machined shapes and through other processes such as nanoparticles (See also application discussion at Nanotechnology Information and at Quantum Dots) and in the form of solutions and organometallics. We also produce Thorium as rods, powder and plates. Other shapes are available by request.

Thorium (Th) atomic and molecular weight, atomic number and elemental symbol Thorium (atomic symbol: Th, atomic number: 90) is a Block F, Group 3, Period 7 element with an atomic weight of 232.03806. The number of electrons in each of thorium's shells is [2, 8, 18, 32, 18, 10, 2] and its electron configuration is [Rn] 6d2 7s2. Thorium Bohr ModelThe thorium atom has a radius of 179 pm and a Van der Waals radius of 237 pm. Thorium was first discovered by Jöns Jakob Berzelius in 1829. The name Thorium originates from the Scandinavian god Thor, the Norse god of war and thunder.Elemental Thorium In its elemental form, thorium has a silvery, sometimes black-tarnished, appearance. It is found in small amounts in most rocks and soils. Thorium is a radioactive element that is currently the best contender for replacing uranium as nuclear fuel for nuclear reactors. It provides greater safety benefits, an absence of non-fertile isotopes, and it is both more available and abundant in the Earth's crust than uranium. For more information on Thorium, including properties, satefy data, research, and American Elements' catalog of Thorium products, visit the Thorium Information Center.


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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

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Production Catalog Available in 36 Countries & Languages

Recent Research & Development for Thorium

    • Ankita Rao, Pradeep Kumar, B.S. Tomar, Supercritical fluid extraction of uranium and thorium employing dialkyl amides, Separation and Purification Technology, Volume 134, 25 September 2014
    • Zongmeng Liao, Ping Huai, Wujie Qiu, Xuezhi Ke, Wenqing Zhang, Zhiyuan Zhu, Lattice dynamics and lattice thermal conductivity of thorium dicarbide, Journal of Nuclear Materials, Available online 12 August 2014
    • Marisa J. Monreal, Robert K. Thomson, Brian L. Scott, Jaqueline L. Kiplinger, Enhancing the synthetic efficacy of thorium tetrachloride bis(1,2-dimethoxyethane) with added 1,2-dimethoxyethane: Preparation of metallocene thorium dichlorides, Inorganic Chemistry Communications, Volume 46, August 2014
    • D. Pérez Daroca, S. Jaroszewicz, A.M. Llois, H.O. Mosca, First-principles study of point defects in thorium carbide, Journal of Nuclear Materials, Available online 30 July 2014
    • Deepak Rawat, Smruti Dash, A.R. Joshi, Thermodynamic studies of thorium phosphate diphosphate and phase investigations of Th-P-O and Th-P-H2O systems, Thermochimica Acta, Volume 581, 10 April 2014
    • M.G. Brik, First-principles studies of the structural, electronic, and optical properties of a novel thorium compound Rb2Th7Se15, Journal of Solid State Chemistry, Volume 212, April 2014
    • Moshiel Biton, Assaf Shamir, Michael Shandalov, Neta Arad-Vosk, Amir Sa'ar, Eyal Yahel, Yuval Golan, Chemical deposition and characterization of thorium-alloyed lead sulfide thin films, Thin Solid Films, Volume 556, 1 April 2014
    • Clément Falaise, Christophe Volkringer, Thierry Loiseau, Isolation of thorium benzoate polytypes with discrete ThO8 square antiprismatic units involved in chain-like assemblies, Inorganic Chemistry Communications, Volume 39, January 2014
    • Yingjie Zhang, Mohan Bhadbhade, Jiabin Gao, Inna Karatchevtseva, Jason R. Price, Gregory R. Lumpkin, Synthesis and crystal structures of uranium (VI) and thorium (IV) complexes with picolinamide and malonamide, Inorganic Chemistry Communications, Volume 37, November 2013
    • A.N. Turanov, V.K. Karandashev, V.M. Masalov, A.A. Zhokhov, G.A. Emelchenko, Adsorption of lanthanides(III), uranium(VI) and thorium(IV) from nitric acid solutions by carbon inverse opals modified with tetraphenylmethylenediphospine dioxide, Journal of Colloid and Interface Science, Volume 405, 1 September 2013
    • K.O. Obodo, N. Chetty, A theoretical study of thorium titanium-based alloys, Journal of Nuclear Materials, Volume 440, Issues 1–3, September 2013
    • Meera Keskar, S.K. Sali, N.D. Dahale, K. Krishnan, N.K. Kulkarni, R. Phatak, S. Kannan, Thermal stability and expansion studies of cesium molybdates and cesium thorium molybdates, Journal of Nuclear Materials, Volume 438, Issues 1–3, July 2013
    • D. Pérez Daroca, S. Jaroszewicz, A.M. Llois, H.O. Mosca, Phonon spectrum, mechanical and thermophysical properties of thorium carbide, Journal of Nuclear Materials, Volume 437, Issues 1–3, June 2013
    • Wenshan Ren, Ning Zhao, Liang Chen, Guofu Zi, Synthesis, structure, and catalytic activity of benzyl thorium metallocenes, Inorganic Chemistry Communications, Volume 30, April 2013
    • C.S. Kedari, S.S. Pandit, P.M. Gandhi, Separation by competitive transport of uranium(VI) and thorium(IV) nitrates across supported renewable liquid membrane containing trioctylphosphine oxide as metal carrier, Journal of Membrane Science, Volume 430, 1 March 2013
    • Recep Akkaya, Birnur Akkaya, Adsorption isotherms, kinetics, thermodynamics and desorption studies for uranium and thorium ions from aqueous solution by novel microporous composite P(HEMA-EP), Journal of Nuclear Materials, Volume 434, Issues 1–3, March 2013
    • S. Yagoubi, S. Heathman, A. Svane, G. Vaitheeswaran, P. Heines, J.-C. Griveau, T. Le Bihan, M. Idiri, F. Wastin, R. Caciuffo, High pressure studies on uranium and thorium silicide compounds: Experiment and theory, Journal of Alloys and Compounds, Volume 546, 5 January 2013
    • Zuokang Lin, Jingen Chen, Wei Guo, Zhimin Dai, The Conceptual Design of Electron-accelerator-driven Subcritical Thorium Molten Salt System, Energy Procedia, Volume 39, 2013
    • Hal Hodson, India's thorium dream remains elusive, New Scientist, Volume 216, Issue 2890, 10 November 2012
    • Yanling LI, Youcai LU, Yan BAI, Wuping LIAO, Extraction and separation of thorium and rare earths with 5,11,17,23-tetra (diethoxyphosphoryl)-25,26,27,28-tetraacetoxycalix[4]arene, Journal of Rare Earths, Volume 30, Issue 11, November 2012