243450

Tellurium dioxide

≥99%

• Synonyme(s) : Tellurium(IV) oxide
• Formule linéaire : TeO₂
• CAS Number: 7446-07-3
• Poids moléculaire : 159.60
• Numéro CE : 231-193-1
• Numéro MDL: MFCD00011263
• Code UNSPSC : 12352303
• ID de substance PubChem : 24854617
• Nomenclature NACRES : NA.23

Propriétés

• Niveau de qualité: 100
• Essai: ≥99%
• Forme: powder
• Pf: 733 °C (lit.)
• Densité: 5.67 g/mL at 25 °C (lit.)
• Chaîne SMILES: O=[Te]=O
• InChI: 1S/O2Te/c1-3-2
• Clé InChI: LAJZODKXOMJMPK-UHFFFAOYSA-N

Description

Description générale

Tellurium dioxide, also known as tellurium(IV) oxide, is a white, crystalline solid with a melting point of 1,130 °C and a boiling point of 1,850 °C. Tellurium dioxide is an important material in a number of applications, including as a catalyst in the synthesis of plastics resins, and pharmaceuticals, and as a component in tellurium-based alloys. Tellurium dioxide is typically made at high temperatures either by decomposition of tellurium(IV) chloride or tellurium(IV) sulfate in the presence of oxygen.

Application

Tellurium dioxide is used to prepare tellurium metal, telluric acid, and many tellurium salts. It may also be used in the preparation of Ag2Te nanoparticles.

Informations sur la sécurité

• Pictogrammes: GHS08,GHS07,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H317,H332,H360Df,H362,H411
• Conseils de prudence: P260 - P263 - P273 - P280 - P304 + P340 + P312 - P308 + P313
• Classification des risques: Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B
• Code de la classe de stockage: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)