Thallium Selenide

High Purity Tl2Se
CAS 1315-08-8

Product Product Code Order or Specifications
(5N) 99.999% Thallium Selenide Powder TL-SE-05-P Contact American Elements
(5N) 99.999% Thallium Selenide Ingot TL-SE-05-I Contact American Elements
(5N) 99.999% Thallium Selenide Chunk TL-SE-05-CK Contact American Elements
(5N) 99.999% Thallium Selenide Lump TL-SE-05-L Contact American Elements
(5N) 99.999% Thallium Selenide Sputtering Target TL-SE-05-ST Contact American Elements
(5N) 99.999% Thallium Selenide Wafer TL-SE-05-WSX Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
Tl2Se 1315-08-8 43526785 6914514 N/A 239-627-1 selenium; thallium N/A [Tl+].[Tl+].[Se-2] InChI=1S/Se.2Tl/q-2;2*+1 KLNGSAIQZVCZLH-UHFFFAOYSA-N

PROPERTIES Compound Formula Mol. Wt. Appearance Melting Point Boiling Point Density

Exact Mass

Monoisotopic Mass Charge MSDS
SeTl2 487.7266 N/A 380.85 °C
(717.53 °F)
N/A 9.05 g/cm3 489.865346 489.865326 Da 0 Safety Data Sheet

Selenide IonThallium Selenide (TlSe) is a crystal grown product generally immediately available in most volumes. Technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Thallium (Tl) atomic and molecular weight, atomic number and elemental symbolThallium (atomic symbol: Tl, atomic number: 81) is a Block P, Group 13, Period 6 element with an atomic weight of 204.38.Thallium Bohr Model The number of electrons in each of thallium's shells is 2, 8, 18, 32, 18, 3 and its electron configuration is [Xe] 4f14 5d10 6s2 6p1. The thallium atom has a radius of 170 pm and a Van der Waals radius of 196 pm. Thallium was discovered by Sir William Crookes in 1861 and first isolated by Claude-Auguste Lamy in 1862. Thallium is a post-transition metal that is not found free in nature. Thallium is primarily used for its electrical conductivity as thallium sulfide which changes with exposure to infrared light. This ability makes the compound useful in photocells.Elemental Thallium Thallium bromide-iodide crystals have been used as infrared optical materials. Thallium has also been used with sulfur, selenium or arsenic to produce low melting glasses which become fluid between 125 and 150 °C, while thallium oxide has been used to produce glasses with a high index of refraction, and is also used in the manufacture of photo cells. Its name is drived from the Greek word "thallos," which means twig or green shoot. For more information on thallium, including properties, safety data, research, and American Elements' catalog of thallium products, visit the Thallium Information Center.

Selenium Bohr ModelSelenide(Se) atomic and molecular weight, atomic number and elemental symbolSelenium (atomic symbol: Se, atomic number: 34) is a Block P, Group 16, Period 4 element with an atomic radius of 78.96. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electron configuration is [Ar] 3d10 4s2 4p4. The selenium atom has a radius of 120 pm and a Van der Waals radius of 190 pm. Selenium is a non-metal with several allotropes: a black, vitreous form with an irregular crystal structure; three red-colored forms with monoclinic crystal structures; and a gray form with a hexagonal crystal structure, the most stable and dense form of the element. Elemental Selenium One of the mose common uses for selenium is in glass production; the red tint that it lends to glass neutralizes green or yellow tints from impurities in the glass materials. Selenium was discovered and first isolated by Jöns Jakob Berzelius and Johann Gottlieb Gahn in 1817. The origin of the name Selenium comes from the Greek word "Selênê," meaning moon. For more information on selenium, including properties, safety data, research, and American Elements' catalog of selenium products, visit the Selenium Information Center.

Material Safety Data Sheet MSDS
Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Precautions N/A
RTECS Number N/A
Transport Information N/A
WGK Germany N/A
Globally Harmonized System of
Classification and Labelling (GHS)

Dithallium selenide, Thallium(I) Selenide, Thallium selenide (Tl2Se), Thallium(III) selenide, Thallium monoselenide, selenium; thallium

Thallium Oxide Thallium Sputtering Target Thallium Chloride Thallium Powder Thallium Metal
Thallium Molybdate Thallium Wire Thallium Pellets Thallium Acetate Thallium Foil
Thallium Oxide Nanopowder Thallium Acetylacetonate Thallium Chromate Thallium Oxide Pellets Thallium Nitrate
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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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Recent Research & Development for Thallium

  • C. Karunakaran, S. Kalaivani, Enhanced visible light-photocatalysis by hydrothermally synthesized thallium-doped bismuth vanadate nanoparticles, Materials Science in Semiconductor Processing, Volume 27, November 2014
  • Wen Liu, Pan Zhang, Alistair G.L. Borthwick, Hao Chen, Jinren Ni, Adsorption mechanisms of thallium(I) and thallium(III) by titanate nanotubes: Ion-exchange and co-precipitation, Journal of Colloid and Interface Science, Volume 423, 1 June 2014
  • Sudha Rana, Navneet Sharma, Himanshu Ojha, Hosakote Gurumalappa Shivkumar, Sarwat Sultana, Rakesh Kumar Sharma, p-Tertbutylcalix[4]arene nanoemulsion: Preparation, characterization and comparative evaluation of its decontamination efficacy against Technetium-99m, Iodine-131 and Thallium-201, Colloids and Surfaces B: Biointerfaces, Volume 117, 1 May 2014
  • G.S. Sivagurunathan, K. Ramalingam, C. Rizzoli, Nanothallium(III) sulfide from dithiocarbamate precursors: Synthesis, single crystal X-ray structures and characterization, Polyhedron, Volume 65, 28 November 2013
  • I. Mucha, Reinvestigation of phase equilibria in the thallium(I) selenide–antimony(III) selenide system, Thermochimica Acta, Volume 563, 10 July 2013
  • Maryam Mohammadi, Kamran Akhbari, Younes Hanifehpour, Ali Morsali, Sang Woo Joo, Giuseppe Bruno, Hadi Amiri Rudbari, Synthesis of one-dimensional Tl2O3 nano-structures from thermolyses of a new two-dimensional thallium(I) supramolecular polymer with secondary polyhapto Tl?C interactions, Journal of Organometallic Chemistry, Volume 733, 1 June 2013
  • Saeed ur Rehman, Najeeb Ullah, Ali Reza Kamali, Khurshid Ali, Cemile Yerlikaya, Hanif ur Rehman, Study of thallium (III) adsorption onto multiwall carbon nanotubes, Carbon, Volume 55, April 2013
  • I. Mucha, Phase diagram for the quasi-binary thallium(I) selenide–indium(III) selenide system, Thermochimica Acta, Volume 550, 20 December 2012
  • Saeed ur Rehman, Najeeb Ullah, Ali Reza Kamali, Khurshid Ali, Cemile Yerlikaya, Hanif ur Rehman, Study of thallium(III) adsorption onto multiwall carbon nanotubes, New Carbon Materials, Volume 27, Issue 6, December 2012
  • R. Adam Rebeles, P. Van den Winkel, A. Hermanne, F. Tárkányi, S. Takács, Experimental excitation functions of deuteron induced reactions on natural thallium up to 50 MeV, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Volume 288, 1 October 2012
  • V. Zhurikhina, J.-R. Duclère, A. Lipovskii, A.P. Mirgorodski, D. Tagantsev, P. Thomas, On the origin of the high Kerr coefficient measured in thallium–zinc–tellurite glasses, Journal of Non-Crystalline Solids, Volume 358, Issue 15, 1 August 2012
  • Mohammad Mahbubur Rahman, K. Rukmani, Rajam Sekhar, S. Asokan, Thermal diffusivity measurements on ternary Ge–Te–Tl glasses using Photo-thermal Deflection method: Effect of thallium addition, Journal of Non-Crystalline Solids, Volume 358, Issues 12–13, 1 July 2012
  • Pavel Kocán, Pavel Sobotík, Peter Matvija, Martin Setvín, Ivan Ošt'ádal, An STM study of desorption-induced thallium structures on the Si(111) surface, Surface Science, Volume 606, Issues 13–14, July 2012
  • I. Mucha, Phase studies on the quasi-binary thallium(I) telluride–bismuth(III) selenide system, Thermochimica Acta, Volume 538, 20 June 2012
  • Jaroslav Kríž, Jirí Dybal, Emanuel Makrlík, Zdenka Sedláková, Ion vs. ion pair receptor: NMR and DFT study of the interaction of Thallium and Cesium ions and ion pairs with meso-octamethylcalix[4]pyrrole, Chemical Physics, Volume 400, 25 May 2012
  • Muralikrishna Molli, Sowmendran Parola, L.A. Avinash Chunduri, Saikiran Aditha, V Sai Muthukumar, Tanu Mimani Rattan, Venkataramaniah Kamisetti, Solvothermal synthesis and study of nonlinear optical properties of nanocrystalline thallium doped bismuth telluride, Journal of Solid State Chemistry, Volume 189, May 2012
  • Kamran Akhbari, Ali Morsali, Thallium(I) supramolecular polymer with Tl?p secondary interactions; preparation of nano-structures by sonochemical method as a new precursor for preparation of Tl2O3 with nano-structural surface, Journal of Organometallic Chemistry, Volume 700, 1 March 2012
  • Brigitte S. Fox-Beyer, Christoph van Wüllen, Theoretical modelling of the adsorption of thallium and element 113 atoms on gold using two-component density functional methods with effective core potentials, Chemical Physics, Volume 395, 20 February 2012
  • Igor Mucha, Katarzyna Wiglusz, Phase studies on the quasi-binary thallium(I) selenide–cadmium selenide system, Thermochimica Acta, Volume 526, Issues 1–2, 10 November 2011

Recent Research & Development for Selenides

  • Azam Sobhani, Masoud Salavati-Niasari, A new simple route for the preparation of nanosized copper selenides under different conditions, Ceramics International, Volume 40, Issue 6, July 2014
  • Margaret A. Tiedemann, Chelsea L. Mandell, Benny C. Chan, Chip Nataro, X-ray structures and oxidative electrochemistry of phosphine sulfides and phosphine selenides, Inorganica Chimica Acta, Available online 18 June 2014
  • Matthew D. Ward, Eric A. Pozzi, Richard P. Van Duyne, James A. Ibers, Syntheses, structures, and optical properties of the indium/germanium selenides Cs4In8GeSe16, CsInSe2, and CsInGeSe4, Journal of Solid State Chemistry, Volume 212, April 2014
  • Xiao Li, Shouri Sheng, Haiyou Su, Li Liu, Xiao-Ling Liu, Polymer-bound phenylselenenylmethyl sulfone as an efficient reagent for the solid-phase synthesis of (E)-vinyl phenyl selenides, Reactive and Functional Polymers, Volume 77, April 2014
  • Elena Yu. Zakharova, Sergey M. Kazakov, Anna A. Isaeva, Artem M. Abakumov, Gustaaf Van Tendeloo, Alexey N. Kuznetsov, Pd5InSe and Pd8In2Se – New metal-rich homological selenides with 2D palladium–indium fragments: Synthesis, structure and bonding, Journal of Alloys and Compounds, Volume 589, 15 March 2014
  • Shivani Gulati (nee Doomra), Kuldip K. Bhasin, Synthesis and characterization of novel 2-fluoro/chloro-3-pyridyl selenides: X-ray crystal structure of bis(2-fluoro-3-pyridyl) diselenide and bis(2-fluoro-3-pyridylseleno) methane, Journal of Fluorine Chemistry, Volume 156, December 2013
  • Wei-Wei Xiong, Kaiqi Ye, Ling Ye, Qichun Zhang, Syntheses, crystal structures, and properties of two new one-dimensional heterometallic selenides: [DBNH]4[M3Sn4Se11(Se2)2] (M = Cd, Hg), Inorganic Chemistry Communications, Volume 35, September 2013
  • Ming-Yan Chung, Chi-Shen Lee, New quinternary selenides: Syntheses, characterizations, and electronic structure calculations, Journal of Solid State Chemistry, Volume 202, June 2013
  • Yanqing Lai, Can Han, Chang Yan, Fangyang Liu, Jie Li, Yexiang Liu, Thermodynamic analysis on metal selenides electrodeposition, Journal of Alloys and Compounds, Volume 557, 25 April 2013
  • Alexander V. Artem'ev, Ludmila A. Oparina, Nina K. Gusarova, Nikita A. Kolyvanov, Oksana V. Vysotskaya, Irina Yu. Bagryanskaya, Boris A. Trofimov, Chemoselective synthesis of first representatives of bis(diorganothiophosphinyl)selenides, (R2P = S)2Se, from secondary phosphine sulfides and elemental selenium, Inorganic Chemistry Communications, Volume 30, April 2013
  • Christian M. Schurz, Pia Talmon-Gros, Falk Lissner, Thomas Schleid, The gadolinium nitride selenides Gd3NSe3 and Gd23N5Se27: Three connectivity types of [NGd4]9+ tetrahedra and fivefold coordinated Gd3+ cations, Solid State Sciences, Volume 17, March 2013
  • Arkady G. Makarov, Alexander Yu. Makarov, Irina Yu. Bagryanskaya, Makhmut M. Shakirov, Andrey V. Zibarev, New polyfluorinated aromatic and aza-aromatic diselenides, selenyl chlorides, non-symmetric selenides and selenoxides, Journal of Fluorine Chemistry, Volume 144, December 2012
  • Dariusz Bialek, Konrad Kowalski, Jacek Scianowski, Zbigniew Rafinski, Andrzej Wojtczak, Preparation and characterization of new chiral ferrocenyl selenides, Journal of Organometallic Chemistry, Volume 712, 1 August 2012
  • Dongjiang Zhao, Sheng Zhang, Geping Yin, Chunyu Du, Zhenobo Wang, Jie Wei, Effect of Se in Co-based selenides towards oxygen reduction electrocatalytic activity, Journal of Power Sources, Volume 206, 15 May 2012
  • Christian Bartsch, Thomas Doert, Pronounced site preference and mixed dinuclear dichalcogenide anions (SSe)2- in ternary lanthanum sulfide selenides – The solid solution LaS1.9–LaSe1.9, Solid State Sciences, Volume 14, Issue 4, April 2012
  • M. Yogeswari, G. Kalpana, Half-metallic ferromagnetism in alkaline earth selenides by first principles calculations, Computational Materials Science, Volume 54, March 2012
  • Azam Sobhani, Masoud Salavati-Niasari, Fatemeh Davar, Shape control of nickel selenides synthesized by a simple hydrothermal reduction process, Polyhedron, Volume 31, Issue 1, 4 January 2012
  • Christian Bartsch, Thomas Doert, Ternary lanthanum sulfide selenides a-LaS2-xSex (0<x<2) with mixed dichalcogenide anions X22- (X=S, Se), Journal of Solid State Chemistry, Volume 185, January 2012
  • John O. Thompson, Michael D. Anderson, Tim Ngai, Thomas Allen, David C. Johnson, Nucleation and growth kinetics of co-deposited copper and selenium precursors to form metastable copper selenides, Journal of Alloys and Compounds, Volume 509, Issue 40, 6 October 2011
  • Madhu, R.N. Singh, Palladium selenides as active methanol tolerant cathode materials for direct methanol fuel cell, International Journal of Hydrogen Energy, Volume 36, Issue 16, August 2011