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Tellurium 126 Isotope
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Isotopic Data





Nuclear Spin (I)


Sn (keV)

9113.8  4

Sp (keV)

9098.2  22


18.95 1 %

ENSDF Citation

NDS 69,429 (1993)

Tellurium 126 Isotope Properties (Theoretical)

Compound Formula 126Te
Molecular Weight 126.0
Appearance Gray powder
Melting Point 450 °C
Boiling Point 990 °C
Density 6.24 g/cm3
Solubility in H2O Slightly soluble
Exact Mass 125.90331 g/mol
Monoisotopic Mass 125.90331 g/mol

Tellurium 126 Isotope Health & Safety Information

Signal Word Danger
Hazard Statements H228-H301
Hazard Codes F, T
Precautionary Statements P210-P240-P241-P264-P270-P280-P301+P310-P321-P330-P370+P378-P405-P501
RTECS Number N/A
Transport Information N/A
WGK Germany UN 3288 6.1/PG III
GHS Pictograms

About Tellurium 126 Isotope

Tellurium 126 Metal (Tellurium-126) is a stable (non-radioactive) isotope of Tellurium. It is both naturally occurring and produced by fission. Tellurium 126 Metal is one of over 250 stable metallic isotopes produced by American Elements for biological and biomedical labeling, as target materials and other applications. Tellurium Metal is also available in ultra high purity and as nanoparticles. For thin film applications it is available as rod, pellets, pieces, granules and sputtering targets and as either an ingot or powder. Tellurium Metal 126 isotopic material is generally immediately available. American 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 Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Tellurium 126 Isotope Synonyms

Tellurium-126 metal, enriched tellurium, 126Te, Te-126

Chemical Identifiers

Linear Formula 126Te74
MDL Number N/A
EC No. N/A
Pubchem CID 25087168
IUPAC Name tellurium-126
SMILES [126Te]
InchI Identifier InChI=1S/Te/i1-2

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 Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Tellurium products. Tellurium (atomic symbol: Te, atomic number: 52) is a Block P, Group 16, Period 5 element with an atomic radius of 127.60. Tellurium Bohr ModelThe number of electrons in each of tellurium's shells is 2, 8, 18, 18, 6 and its electron configuration is [Kr] 4d10 5s2 5p4. Tellurium was discovered by Franz Muller von Reichenstein in 1782 and first isolated by Martin Heinrich Klaproth in 1798. In its elemental form, tellurium has a silvery lustrous gray appearance. The tellurium atom has a radius of 140 pm and a Van der Waals radius of 206 pm. Elemental TelluriumTellurium is most commonly sourced from the anode sludges produced as a byproduct of copper refining. The name Tellurium originates from the Greek word Tellus, meaning Earth.


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