204552

Tellurdioxid

99.995% trace metals basis

• Synonym(e): Telluria, Tellurium (IV) oxide, Tellurium oxide
• Lineare Formel: TeO₂
• CAS-Nummer: 7446-07-3
• Molekulargewicht: 159.60
• EG-Nummer: 231-193-1
• MDL-Nummer: MFCD00011263
• UNSPSC-Code: 12352303
• PubChem Substanz-ID: 24852276
• NACRES: NA.23

Eigenschaften

• Qualitätsniveau: 100
• Assay: 99.995% trace metals basis
• mp (Schmelzpunkt): 733 °C (lit.)
• Dichte: 5.67 g/mL at 25 °C (lit.)
• SMILES String: O=[Te]=O
• InChI: 1S/O2Te/c1-3-2
• InChIKey: LAJZODKXOMJMPK-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Telluriumdioxide, also known as tellurium(IV) oxide, is a white powder with a melting point of 733 °C. TeO₂ is characterized by its unique propertiesand is widely used in various applications, including optics, electronics, andas a precursor for the synthesis of tellurium-based materials. It is recognized for its strong optical characteristics and is employed in the production of optical fibers and other photonic devices. Additionally, it plays a crucial role in the preparation of diverse tellurium compounds for various chemical transformations. Our high-purity tellurium dioxide powder is distinguished by its low impurity levels, making it particularly suitable for sensitive electronic applications.[1][2][3]

Anwendung

Tellurium dioxide can be used:

• As a seed layer to fabricate hole-extracting electrodes in an organic photovoltaic device. The addition of TeO₂ enhances the optical transmittance of the electrode.
• As a starting material to prepare tellurite glasses for gamma radiation shielding and other optical applications.

Sicherheitshinweise

• Piktogramme: GHS08,GHS07,GHS09
• Signalwort: Danger
• H-Sätze: H317,H332,H360Df,H362,H411
• P-Sätze: P260 - P263 - P273 - P280 - P304 + P340 + P312 - P308 + P313
• Gefahreneinstufungen: Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B
• Lagerklassenschlüssel: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)