Tungsten Selenide Flakes
ORDER
Product | Product Code | ORDER | SAFETY DATA | Technical data |
---|---|---|---|---|
Tungsten Diselenide Single Crystal Monolayer Flakes | W-SE-01-FK | Pricing Add to cart only | SDS > | Data Sheet > |
Tungsten Selenide Flakes Properties (Theoretical)
Compound Formula | WSe2 |
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Molecular Weight | 341.76 |
Appearance | Transparent thin film (single crystalline flakes) |
Melting Point | >1200 °C |
Boiling Point | N/A |
Density | 9.32 g/cm3 |
Solubility in H2O | N/A |
Exact Mass | 343.783974 |
Monoisotopic Mass | 343.783974 |
Crystal Phase / Structure | Hexagonal (2H) |
Tungsten Selenide Flakes Health & Safety Information
Signal Word | N/A |
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Hazard Statements | N/A |
Hazard Codes | N/A |
Risk Codes | N/A |
Safety Statements | N/A |
Transport Information | N/A |
GHS Pictogram |
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About Tungsten Selenide Flakes
Synonyms
Tungsten(IV) selenide, tungsten diselenide, diselenoxotungsten
Chemical Identifiers
Linear Formula | WSe2 |
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Pubchem CID | 82910 |
MDL Number | MFCD00049703 |
EC No. | 235-078-7 |
IUPAC Name | bis(selanylidene)tungsten |
Beilstein/Reaxys No. | N/A |
SMILES | [Se]=[W]=[Se] |
InchI Identifier | InChI=1S/2Se.W |
InchI Key | ROUIDRHELGULJS-UHFFFAOYSA-N |
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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 Tungsten products. Tungsten (atomic symbol: W, atomic number: 74) is a Block D, Group 6, Period 6 element with an atomic weight of 183.84. The number of electrons in each of tungsten's shells is [2, 8, 18, 32, 12, 2] and its electron configuration is [Xe] 4f14 5d4 6s2. The tungsten atom has a radius of 139 pm and a Van der Waals radius of 210 pm. Tungsten was discovered by Torbern Bergman in 1781 and first isolated by Juan José Elhuyar and Fausto Elhuyar in 1783. In its elemental form, tungsten has a grayish white, lustrous appearance.
Tungsten has the highest melting point of all the metallic elements and a density comparable to that or uranium or gold and about 1.7 times that of lead. Tungsten alloys are often used to make filaments and targets of x-ray tubes. It is found in the minerals scheelite (CaWO4) and wolframite [(Fe,Mn)WO4]. In reference to its density, Tungsten gets its name from the Swedish words tung and sten, meaning heavy stone.
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