Tellurium Nanoparticles

• CAS: 13494-80-9
• Catalog Number: ACM13494809-4
• Category: Nanoparticles & Nanopowders
• Molecular Weight: 127.60 g/mol
• Molecular Formula: Te
• Description: Grayish-white, lustrous, brittle, crystalline solid; dark-gray to brown, amorphous powder with metallic characteristics. Used as a coloring agent in chinaware, porcelains, enamels, glass; producing black finish on silverware; semiconductor devices and research; manufacturing special alloys of marked electrical resistance. Improves mechanical properties of lead; powerful carbide stabilizer in cast iron, tellurium vapor in "daylight" lamps, vulcanization of rubber. Blasting caps. Semiconductor research. (EPA, 1998);DARK GREY-TO-BROWN AMORPHOUS POWDER, WITH METAL CHARACTERISTICS OR SILVERY-WHITE, LUSTROUS CRYSTALLINE SOLID.;Odorless, dark-gray to brown, amorphous powder or grayish-white, brittle solid.;Odorless, dark-gray to brown, amorphous powder or grayish-white, brittle solid.
• Synonyms: Tellurium nanopowder
• IUPAC Name: tellurium
• Canonical SMILES: [Te]
• InChI: InChI=1S/Te
• InChI Key: PORWMNRCUJJQNO-UHFFFAOYSA-N
• Boiling Point: 988 °C
• Melting Point: 449.51 °C
• Density: 6.24 g/cm³
• Solubility: Insoluble in water
• Appearance: Solid
• Application: Tellurium nanoparticles harness the unique properties of tellurium, a silvery-gray semimetal with a notable crystalline structure and semiconductive properties. These nanoparticles are particularly valuable due to their enhanced conductivity, which is sensitive to light exposure, making them ideal for applications in the electronics industry, including the development of advanced semiconductors and photoreceptors. Furthermore, tellurium's compatibility with other elements allows for its use in creating special alloys that exhibit remarkable electrical resistance. By leveraging the distinctive characteristics of tellurium, these nanoparticles are designed to improve the performance and durability of materials while expanding their applications in high-tech fields.
• Autoignition Temperature: 340 °C
• Color/Form: Grayish-white, lustrous, brittle, crystalline solid, hexagonal, rhombohedral structure;Dark-gray to brown, amorphous powder with metal characteristics
• Complexity: 0
• Covalently-Bonded Unit Count: 1
• Crystal Phase: Hexagonal
• Decomposition: When heated to decomposition it emits toxic fumes of /tellurium/.
• EC Number: 236-813-4
• Electrical Resistivity: 436000 µΩ · cm (20 °C
• Electronegativity: 2.1 Paulings
• Exact Mass: 129.906223g/mol
• Formal Charge: 0
• Harmonized Tariff Code: WY2625000
• Hazard Codes: T
• Hazard Statements: H301-H315+H319+H335-H332
• H-Bond Acceptor: 0
• H-Bond Donor: 0
• Heat of Fusion: 17.49 kJ/mol
• Heat of Vaporization: 114.1 kJ/mol
• Heavy Atom Count: 1
• ICSC Number: 0986
• MDL Number: MFCD00134062
• Monoisotopic Mass: 129.906223g/mol
• Odor: Odorless.
• Other Experimental: Vapor pressure between 511 and 835 °C is given by equation logP(kPa)= 6.7249-(5960.2/K);Diatomic in vapor state; atomic number 52, valence 2, 4, 6; in air dissolves in potassium hydroxide; electrical resistivity at 19.6 °C: 200,000 micro-ohms/cm; reacts with nitric acid, not with hydrochloric acid; linear coefficient of thermal expansion: 16.8X10-6/deg C; latent heat of fusion: 4.27 kcal/mol; hardness (Mohs): 2.3; magnetic susceptibility at 18 °C: -0.31X10-6 cgs; specific heat (solid): 0.047 cal/g/deg C;TELLURIUM BURNS IN AIR WITH A GREENISH-BLUE FLAME TO FORM TELLURIUM DIOXIDE;Combines with halogens, does not react with sulfur or selenium; modulus of elasticity: 6000000 psi. ... Eight stable isotopes: 120, 122, 123, 124, 125, 126, 128, 130; reacts with concentrated or fuming sulfuric acid
• Refractive Index: 1.000991
• Rotatable Bond Count: 0
• RTECS Number: WY2625000
• Safety Description: 13-28-45-61
• Specific Heat: 0.20 J/g·K
• Stability: TARNISHES SLIGHTLY IN AIR
• Thermal Conductivity: 1.97-3.0 W/m·K
• Thermal Expansion: 18 µm/m·K (20 °C)
• UNII: NQA0O090ZJ;7F4735942K
• UN Number: 1325
• Vapor Pressure: 1 mm Hg at 968 °F (EPA, 1998);1 mmHg at 968°F;0 mmHg (approx)
• Viscosity: 1.8-1.95 cP
• Young's Modulus: 43 GPa