Tellurium

Base Information Edit

Chemical Name:Tellurium
CAS No.:13494-80-9
Deprecated CAS:137322-20-4
Molecular Formula:Te
Molecular Weight:129.616
Hs Code.:28045000
European Community (EC) Number:236-813-4,231-981-5
ICSC Number:0986
UN Number:1325
UNII:NQA0O090ZJ,7F4735942K
DSSTox Substance ID:DTXSID9032119,DTXSID20228446
Wikipedia:Tellurium
Wikidata:Q1100
NCI Thesaurus Code:C95192
Mol file:13494-80-9.mol

Synonyms:Tellurium

Suppliers and Price of Tellurium

Supply Marketing:Edit

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Strem Chemicals
Tellurium powder (99.9%)
500g
$ 804.00

Strem Chemicals
Tellurium powder (99.8%)
500g
$ 804.00

Strem Chemicals
Tellurium broken ingot (99.999%)
500g
$ 770.00

Strem Chemicals
Tellurium broken ingot (99.9999%)
50g
$ 278.00

Strem Chemicals
Tellurium broken ingot (99.999%)
100g
$ 193.00

Strem Chemicals
Tellurium powder (99.9%)
100g
$ 201.00

Strem Chemicals
Tellurium powder (99.8%)
100g
$ 201.00

Strem Chemicals
Tellurium broken ingot (99.99+%)
100g
$ 165.00

Strem Chemicals
Tellurium powder (99.999%)
50g
$ 182.00

Strem Chemicals
Tellurium powder (99.999%)
10g
$ 68.00

Total 106 raw suppliers

Chemical Property of Tellurium Edit

Chemical Property:

Appearance/Colour:solid
Vapor Pressure:0Pa at 25℃
Melting Point:722.66 K,?449.51 °C,?841.12 °F
Boiling Point:1261 K,?988 °C,?1810 °F
PSA：0.00000
Density:6.24 g/cm³
LogP:-0.15580
Storage Temp.:Sealed in dry,Room Temperature
Water Solubility.:insoluble H2O, benzene, CS2 [MER06]
Hydrogen Bond Donor Count:0
Hydrogen Bond Acceptor Count:0
Rotatable Bond Count:0
Exact Mass:129.9062227
Heavy Atom Count:1
Complexity:0

Purity/Quality:

99.99% ^*data from raw suppliers

Tellurium powder (99.9%) ^*data from reagent suppliers

Safty Information:

Pictogram(s): T
Hazard Codes:T
Statements: 25
Safety Statements: 45-28A

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Chemical Classes:Metals -> Metalloid Compounds (Tellurium)
Canonical SMILES:[Te]
Recent EU Clinical Trials:Open, Blindly Evaluated, Prospective, Controlled, Randomized, Multicenter Phase III Clinical Trial to Compare Intra-individually the Efficacy and Tolerance of Oleogel-S10 versus Standard of Care in Accelerating the Wound Healing of Split-Thickness Skin Graft Donor Sites
Inhalation Risk:Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of Short Term Exposure:The aerosol is irritating to the eyes and respiratory tract. The substance may cause effects on the liver and central nervous system. Exposure could cause garlic-like breath. Medical observation is indicated.
Uses Small amounts of tellurium are added to stainless steel and copper to improve their machinability. It enhances the strength and hardness of lead and protects lead from the corrosive action of sulfuric acid. Tellurium also is a strong chilling agent in iron castings. It controls the chill and imparts a tough abrasion resistance to the surface. Tellurium is a curing agent for natural and synthetic rubber. It improves mechanical properties of the rubber imparting resistance to heat and abrasion. Tellurium is a coloring agent in glass, ceramics, and enamels. Traces of tellurium incorporated into platinum catalysts make the catalytic hydrogenation of nitric oxide favorable to forming hydroxylamine. A major application of tellurium is in semiconductor research. Tellurides of lead and bismuth are used in thermoelectric devices for power generation and refrigeration. Tellurium is a common constituent of ores that contain silver, gold, lead, antimony, and bismuth, and it is often present in small amounts in coal. Tellurium is widely used in metallurgy because it improves the properties of copper, tin, lead-based alloys, steel, and cast iron. It is used in rubber manufacturing to increase heat resistance and to retard the aging of rubber hoses and cable coatings. Small amounts are used in the electronics industry for lasers and photoreceptors. Tellurium is not an essential micronutrient; therefore, it is not found in nutritional supplements. As coloring agent in chinaware, porcelains, enamels, glass; reagent in producing black finish on silverware; in manufacture of special alloys of marked electrical resistance; in semiconductor research. Tellurium’s major use is as an alloy with copper and stainless steel. It makes these metalseasier to machine and mill (cut on a lathe). It is also used as a vulcanizing agent in the productionof rubber, as a coloring agent for glass and ceramics, and for thermoelectrical devices.Along with lithium, it is used to make special batteries for spacecraft and infrared lamps.Tellurium can be used as a p-type semiconductor, but more efficient elements can do a betterjob. It is also used as a depilatory, which removes hair from skin.Although tellurium forms many compounds, most of them have little commercial value. The metal is used in vulcanizing rubber, instorage batteries, and as a coloring agent inceramics. It is also used as an additive toiron, steel, and copper. Many tellurium saltsfind application on semiconductors.
Description Tellurium is one of the rarest elements on earth similar to selenium, and was discovered in Transylvania in 1782 by Franz-Joseph Muller von Reichenstein. The name derived from the Latin word for earth. Tellurium is occasionally found naturally, more often as telluride of gold, calaverite.
Physical properties Tellurium is a silver-white, brittle crystal with a metallic luster and has semiconductorcharacteristics. It is a metalloid that shares properties with both metals and nonmetals, andit has some properties similar to selenium and sulfur, located just above it in group 16 of theperiodic table.There are two allotropic forms of tellurium: (1) the crystalline form that has a silvery metallicappearance and a density of 6.24 g/cm3, a melting point of 499.51°C, and a boiling point of988°C; and (2) the amorphous allotrope that is brown in color and has a density of 6.015g/cm3and ranges for the melting and boiling point temperatures similar to the crystalline form.

Technology Process of Tellurium

There total 89 articles about Tellurium which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 100.0%

: 14683-12-6
tellurium

: hydrogen

: 13494-80-9,7783-09-7
hydrogen telluride

Guidance literature:: In gas; other Radiation; Laser thermochemical synthesis of gaseous TeH2 from gaseous H and Te atoms.;

Reference yield: 80.0%

: aluminum telluride

: 13494-80-9,7783-09-7
hydrogen telluride

Guidance literature:: In hydrogenchloride; addn. of pure Al2Te3 (from Te vapor and heated Al) into excess of 4n HCl soln. free of air in special app. under exclusion of O2, moisture and light; gas with 40% H2Te;;