Thallium Selenide

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Product Code Product Request Quote
TL-SE-05-I (5N) 99.999% Thallium Selenide Ingot Request
TL-SE-05-L (5N) 99.999% Thallium Selenide Lump Request
TL-SE-05-P (5N) 99.999% Thallium Selenide Powder Request
TL-SE-05-ST (5N) 99.999% Thallium Selenide Sputtering Target Request
TL-SE-05-WSX (5N) 99.999% Thallium Selenide Wafer Request


Thallium 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.


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

Chemical Identifiers

Formula Tl2Se
CAS 1315-08-8
Pubchem CID 6914514
EC No. 239-627-1
IUPAC Name selenium; thallium
Beilstein Registry No. N/A
SMILES [Tl+].[Tl+].[Se-2]
InchI Identifier InChI=1S/Se.2Tl/q-2;2*+1


Compound Formula SeTl2
Molecular Weight 487.7266
Appearance N/A
Melting Point 380.85 °C (717.53 °F)
Boiling Point N/A
Density 9.05 g/cm3
Exact Mass 489.865346
Monoisotopic Mass 489.865326 Da

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A

Packaging Specifications

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.

Related Products

TlSee more Thallium products. Thallium (atomic symbol: Tl, atomic number: 81) is a Block P, Group 13, Period 6 element with an atomic weight of 204.38. 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. 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.


Recent Research & Development for Thallium

  • Toxic thallium. Lennartson A. Nat Chem. 10/22/2015
  • The acute toxicity of thallium to freshwater organisms: Implications for risk assessment. Tatsi K, Turner A, Handy RD, Shaw BJ. Sci Total Environ. 10/1/2015
  • Protective Effects of Diallyl Sulfide and Curcumin Separately against Thallium-Induced Toxicity in Rats. Abdel-Daim MM, Abdou RH. Cell J. 9/30/2015
  • An extensive discrepancy in myocardial uptake of thallium-201 and iodine-123 BMIPP in a patient with ST-segment elevation myocardial infarction treated using postconditioning with lactate-enriched blood. Koyama T, Munakata M, Akima T, Kanki H, Ishikawa S. Int J Cardiol. 9/30/2015
  • Nuclear volume effects in equilibrium stable isotope fractionations of mercury, thallium and lead. Yang S, Liu Y. Sci Rep. 9/30/2015
  • Photoinduced Reactivity of the Soft Hydrotris(6-tert-butyl-3-thiopyridazinyl)borate Scorpionate Ligand in Sodium, Potassium, and Thallium Salts. Tüchler M, Belaj F, Raber G, Neshchadin D, Mösch-Zanetti NC. Inorg Chem. 9/30/2015
  • The adsorption potential and recovery of thallium using green micro-algae from eutrophic water sources. Birungi ZS, Chirwa EM. J Hazard Mater. 9/28/2015
  • Biosorption and bioaccumulation of thallium by thallium-tolerant fungal isolates. Sun J, Zou X, Xiao T, Jia Y, Ning Z, Sun M, Liu Y, Jiang T. Environ Sci Pollut Res Int. 9/24/2015
  • Quantitative (201)thallium scintigraphy for prediction of histological response to neoadjuvant chemotherapy in osteosarcoma; systematic review and meta-analysis. Kubo T, Shimose S, Fujimori J, Furuta T, Ochi M. Surg Oncol. 9/23/2015
  • High Accumulation and Subcellular Distribution of Thallium in Green Cabbage (Brassica Oleracea L. Var. Capitata L.). Ning Z, He L, Xiao T, Márton L. Int J Phytoremediation. 9/21/2015

Recent Research & Development for Selenides

  • Carrier multiplication detected through transient photocurrent in device-grade films of lead selenide quantum dots. Gao J, Fidler AF, Klimov VI. Nat Commun. 9/29/2015
  • Improved Photoelectrochemical Cell Performance of Tin Oxide with Functionalized-Multiwalled Carbon Nanotubes-Cadmium Selenide Sensitizer. Bhande SS, Ambade RB, Shinde DV, Ambade SB, Patil S, Naushad M, Mane RS, Alothman ZA, Lee SH, Han SH. ACS Appl Mater Interfaces. 9/28/2015
  • [Optical Constants Determination of Zinc Selenide by Inversing Transmittance Spectrogram Transmittance Spectra Measurement and Thermal Radiative Physical Parameters Inversion of Diesel Fuel]. Li D, Qi HB, Wu GZ. Guang Pu Xue Yu Guang Pu Fen Xi. 9/24/2015
  • Red-to-Ultraviolet Emission Tuning of Two-Dimensional Gallium Sulfide/Selenide. Jung CS, Shojaei F, Park K, Oh JY, Im HS, Jang DM, Park J, Kang HS. ACS Nano. 9/23/2015
  • Lead selenide-Titanium dioxide heteronanojunction formation by photocatalytic current doubling-induced two-step photodeposition technique. Tanaka K, Jin-Nouchi Y, Fujishima M, Tada H. J Colloid Interface Sci. 9/21/2015
  • Using different chemical methods for deposition of copper selenide thin films and comparison of their characterization. Güzeldir B, Sa?lam M. Spectrochim Acta A Mol Biomol Spectrosc. 9/17/2015
  • Ba2AsGaSe5: A New Quaternary Selenide with the Novel [AsGaSe5]4- Cluster and Interesting Photocatalytic Properties. Li C, Li X, Huang H, Yao J, Wu Y. Inorg Chem. 8/25/2015
  • Independent Composition and Size Control for Highly Luminescent Indium-Rich Silver Indium Selenide Nanocrystals. Yarema O, Yarema M, Bozyigit D, Lin WM, Wood VC. ACS Nano. 7/21/2015
  • Ultrasensitive sensing platform for platelet-derived growth factor BB detection based on layered molybdenum selenide-graphene composites and Exonuclease III assisted signal amplification. Huang KJ, Shuai HL, Zhang JZ. Biosens Bioelectron. 7/17/2015
  • Multiple-exciton generation in lead selenide nanorod solar cells with external quantum efficiencies exceeding 120. Davis NJ, Böhm ML, Tabachnyk M, Wisnivesky-Rocca-Rivarola F, Jellicoe TC, Ducati C, Ehrler B, Greenham NC. Nat Commun. 7/12/2015

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We will then evaluate your future needs and assuming the quantity or number of future purchases qualify, we will fully credit your purchase price with the next order. Because of the many variables in the quantity and number of orders you may place, it is impossible to evaluate whether your future order(s) will qualify for this program prior to your placing your next order. Please know American Elements strongly desires to make this free sample program available to you and will make every effort to do so once your next order is placed.