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Tellurium Nanoparticles

Catalog Number
ACM13494809-4
CAS Number
13494-80-9
Product Name
Tellurium Nanoparticles
Structure
Category
Electronic Materials
Synonyms
Tellurium nanopowder
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.
IUPAC Name
tellurium
Molecular Weight
127.60 g/mol
Molecular Formula
Te
Canonical SMILES
[Te]
InChI
InChI=1S/Te
InChI Key
PORWMNRCUJJQNO-UHFFFAOYSA-N
Boiling Point
988 °C
Melting Point
449.51 °C
Purity
99.9 %
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.
Average Particle Size
80-100 nm
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
EC Number
236-813-4
Electrical Resistivity
436000 µΩ · cm (20 °C
Exact Mass
129.906223g/mol
Formal Charge
0
Hazard Statements
H301-H315+H319+H335-H332
HeatOfFusion
17.49 kJ/mol
Heat of Vaporization
114.1 kJ/mol
Heavy Atom Count
1
ICSC Number
0986
MDL Number
MFCD00134062
MeSH Entry Terms
Tellurium
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
Stability
TARNISHES SLIGHTLY IN AIR
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
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