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Tellurium dioxide

Tellurium dioxide Suppliers list
Company Name: Zhuoer Chemical Co., Ltd
Tel: 02120970332; +8613524231522
Email: sales@zhuoerchem.com
Products Intro: Product Name:Tellurium oxide TeO2
Purity:0.99 Package:25KG;5KG;1KG
Company Name: Hebei Mojin Biotechnology Co., Ltd
Tel: +86-13288715578 +86-13231137666
Email: sales@hbmojin.com
Products Intro: Product Name:Tellurium dioxide
CAS:7446-07-3
Purity:99% Package:25KG
Company Name: Hebei Guanlang Biotechnology Co,.LTD
Tel: +8619930503252
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Products Intro: Product Name:Tellurium dioxide
CAS:7446-07-3
Purity:99% Package:1KG;150USD|10KG;100USD|50KG;90USD
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: +86-0371-55170693 +86-19937530512
Email: info@tianfuchem.com
Products Intro: Product Name:TIANFU-CHEM CAS:7446-07-3 Tellurium dioxide
CAS:7446-07-3
Purity:99% Package:25KG;5KG;1KG
Company Name: career henan chemical co
Tel: +86-0371-86658258
Email: sales@coreychem.com
Products Intro: Product Name:Tellurium dioxide
CAS:7446-07-3
Purity:99.99% Package:1kg;1USD

Tellurium dioxide manufacturers

  • Tellurium dioxide
  • Tellurium dioxide pictures
  • $0.00 / 25KG
  • 2023-09-20
  • CAS:7446-07-3
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 50000KG/month
  • Tellurium dioxide
  • Tellurium dioxide pictures
  • $0.00 / 25KG
  • 2023-09-20
  • CAS:7446-07-3
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 50000KG/month
  • Tellurium dioxide
  • Tellurium dioxide pictures
  • $0.00 / 1KG
  • 2023-09-06
  • CAS:7446-07-3
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 500000kg
Tellurium dioxide Basic information
Product Name:Tellurium dioxide
Synonyms:TELLURIUM(IV) OXIDE;TELLERIUM OXIDE;TELLURIUM(+4)OXIDE;Tellurium oxide (TeO2);telluriumoxide(teo2);Tellurous acid anhydride;TelluriuM(IV) oxide, 99.9995%, (trace Metal basis);TELLURIUM DIOXIDE 99.5+ 25 G
CAS:7446-07-3
MF:O2Te
MW:159.6
EINECS:231-193-1
Product Categories:Metal and Ceramic Science;Oxides;Tellurium;metal oxide;Inorganics
Mol File:7446-07-3.mol
Tellurium dioxide Structure
Tellurium dioxide Chemical Properties
Melting point 733 °C (lit.)
Boiling point 1245 °C
density 5.67 g/mL at 25 °C (lit.)
vapor pressure 0Pa at 25℃
storage temp. no restrictions.
solubility insoluble in H2O; soluble in alkaline solutions, acid solutions
form Powder
color White to slightly yellow
Specific Gravity5.8
Water Solubility insoluble
λmax360nm(neat)(lit.)
Merck 14,9123
Exposure limitsACGIH: TWA 0.1 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
Stability:Stable. Incompatible with strong acids, strong oxidizing agents.
CAS DataBase Reference7446-07-3(CAS DataBase Reference)
NIST Chemistry Referencetellurium(IV) dioxide(7446-07-3)
EPA Substance Registry SystemTellurium oxide (TeO2) (7446-07-3)
Safety Information
Safety Statements 24/25
RIDADR UN 3284 6.1/PG 3
WGK Germany 2
RTECS WY2675000
TSCA Yes
HazardClass 6.1(a)
PackingGroup II
HS Code 28112900
ToxicityLD50 orally in Rabbit: > 2000 mg/kg
MSDS Information
ProviderLanguage
Tellurium dioxide English
SigmaAldrich English
ACROS English
ALFA English
Tellurium dioxide Usage And Synthesis
Chemical PropertiesHeavy, white, crystalline powder; odorless. Soluble in concentrated acids, alkalies; slightly soluble in dilute acids, water.
Tellurium dioxide.jpg
Physical propertiesWhite crystals; dimorphic; exists in tetragonal and orthorhombic forms; density 5.75 g/cm3 (tetragonal), 6.04 g/cm3 (orthorhombic); melts at 733°C forming a deep yellow liquid; vaporizes at 1,245°C; insoluble in water; soluble in acids and alkalies.
UsesTeO2 can be potentially used in medical imaging and industrial monitoring processes.
UsesTellurium dioxide is used to prepare tellurium metal, telluric acid, and many tellurium salts. It may also be used in the preparation of Ag2Te nanoparticles.
UsesTellurium dioxide is also used in devices which can convert light into sound (acousto-optic material). Glasses made of tellurium oxide have high refractive indices and transmit into mid-IR region. It is used to make glasses with special properties. It is useful in optical waveguides and optical fiber amplification.
Production MethodsTellurium dioxide in its orthorhombic form occurs in nature as mineral tellurite. It is mined from natural deposits. Also, tellurium dioxide is produced as an intermediate during recovery of tellurium metal from anode slimes of electrolytic copper refining (See Tellurium, Production). The dioxide also is prepared by treating tellurium metal with hot nitric acid to form 2TeO2?HNO3. The product then is heated to drive off nitric acid.
General DescriptionTellurium dioxide (TeO2) is a ceramic material that can be used as a semiconducting oxide. It has a wide band gap and high mobility as determined by density functional theory (DFT) calculations. In bulk quantity, it exists in two polymorphs which include tetragonal α-TeO2 and orthorhombic β-TeO2.
Flammability and ExplosibilityNon flammable
Safety ProfilePoison by intratracheal route. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of Te. See also TELLURIUM COMPOUNDS.
Purification MethodsDissolve it in 5M NaOH, filter it and precipitate it by adding 10M HNO3 to the filtrate until the solution is acid to phenolphthalein. After decanting the supernatant, the precipitate is washed five times with distilled water, then dried for 24hours at 110o [Horner & Leonhard J Am Chem Soc 74 3694 1952].
Tellurium dioxide Preparation Products And Raw materials
Raw materialsTellurium tetrafluoride.-->TELLURIUM (IV) IODIDE-->Tellurium tetrachloride-->dihydrogen trioxotellurate-->TELLURIC ACID-->Nitric acid
Preparation ProductsTELLURIUM HEXAFLUORIDE
Tag:Tellurium dioxide(7446-07-3) Related Product Information
Quartz Zirconium dioxide Sulfurous Acid Carbon dioxide Chlorine dioxide Tellurium Rutile Tellurium tetrachloride SODIUM TELLURATE TELLURIC ACID Tellurium oxide POTASSIUM TELLURATE AMMONIUM TELLURIUM OXIDE ANTIMONY (IV) OXIDE sulfur dioxide RUBIDIUM TELLURATE Tellurium dioxide STRONTIUM TELLURATE