ORDER
Product | Product Code | ORDER | SAFETY DATA | Technical data |
---|---|---|---|---|
(5N) 99.999% Tantalum Selenide Ingot | TA-SE-05-I | Pricing Add to cart only | SDS > | Data Sheet > |
(5N) 99.999% Tantalum Selenide Lump | TA-SE-05-L | Pricing Add to cart only | SDS > | Data Sheet > |
(5N) 99.999% Tantalum Selenide Powder | TA-SE-05-P | Pricing Add to cart only | SDS > | Data Sheet > |
(5N) 99.999% Tantalum Selenide Sputtering Target | TA-SE-05-ST | Pricing Add to cart only | SDS > | Data Sheet > |
(5N) 99.999% Tantalum Selenide Wafer | TA-SE-05-WF | Pricing Add to cart only | SDS > | Data Sheet > |
Tantalum Selenide Properties (Theoretical)
Compound Formula | Se2Ta |
---|---|
Molecular Weight | 338.8679 |
Appearance | solid |
Melting Point | 2000 °C (3632 °F) |
Boiling Point | N/A |
Density | 6.7 g/cm3 |
Solubility in H2O | N/A |
Exact Mass | 340.78104 |
Monoisotopic Mass | 340.781036 Da |
Tantalum Selenide Health & Safety Information
Signal Word | Danger |
---|---|
Hazard Statements | H301+H331-H373-H410 |
Hazard Codes | T+, N |
Precautionary Statements | P260-P264-P270-P271-P273-P301+P310+P330-P304+P340+P311-P314-P391-P403+P233-P405-P501 |
Risk Codes | N/A |
Safety Statements | N/A |
Transport Information | UN 3283 6.1/PG III |
WGK Germany | 3 |
GHS Pictogram |
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About Tantalum Selenide

Synonyms
Tantalum diselenide, bis(selanylidene)tantalum, diselanylidenetantalum, diselenoxotantalum
Chemical Identifiers
Linear Formula | TaSe2 |
---|---|
Pubchem CID | 82873 |
MDL Number | MFCD00064699 |
EC No. | 234-898-2 |
IUPAC Name | bis(selanylidene)tantalum |
Beilstein/Reaxys No. | N/A |
SMILES | [Se]=[Ta]=[Se] |
InchI Identifier | InChI=1S/2Se.Ta |
InchI Key | IYJABVNLJXJBTP-UHFFFAOYSA-N |
Chemical Formula | |
Molecular Weight | |
Standard InchI | |
Appearance | |
Melting Point | |
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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 Selenium products. Selenium (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.
One of the most 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.
See more Tantalum products. Tantalum (atomic symbol: Ta, atomic number: 73) is a Block D, Group 5, Period 6 element with an atomic weight of 180.94788. The number of electrons in each of tantalum's shells is [2, 8, 18, 32, 11, 2] and its electron configuration is [Xe] 4f14 5d3 6s2. The tantalum atom has a radius of 146 pm and a Van der Waals radius of 217 pm.
Tantalum was first discovered by Anders G. Ekeberg in 1802 in Uppsala, Sweden however, it was not until 1844 when Heinrich Rose first recognized it as a distinct element. In its elemental form, tantalum has a grayish blue appearance. Tantalum is found in the minerals tantalite, microlite, wodginite, euxenite, and polycrase. Due to the close relation of tantalum to niobium in the periodic table, Tantalum's name originates from the Greek word Tantalos meaning Father of Niobe in Greek mythology.
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