266418

Tellurium

powder, −200 mesh, 99.8% trace metals basis

• Formule empirique (notation de Hill) : Te
• CAS Number: 13494-80-9
• Poids moléculaire : 127.60
• Numéro CE : 236-813-4
• Numéro MDL: MFCD00134062
• Code UNSPSC : 12141913
• ID de substance PubChem : 24856140
• Nomenclature NACRES : NA.23

Propriétés

• Niveau de qualité: 100
• Essai: 99.8% trace metals basis
• Forme: powder
• Résistivité: 5.8-33 μΩ-cm, 20°C
• Taille des particules: −200 mesh
• pb: 990 °C (lit.)
• Pf: 450 °C (lit.)
• Densité: 6.24 g/mL at 25 °C (lit.)
• Chaîne SMILES: [Te]
• InChI: 1S/Te
• Clé InChI: PORWMNRCUJJQNO-UHFFFAOYSA-N

Description

Description générale

Tellurium is anon-radioactive and heaviest member of the chalcogen family. It has a widerange of oxidation states, from -2 to +6. It is widely used in the fields ofmetallurgy and electronics.

Application

Tellurium can be used as a precursor to prepare:

• Tellurium-based nanomaterials for semiconductor application, such as CdTe nanoparticles via solvothermal synthesis.
• Quantum dot solutions for fluorometric determination of bioactive compounds.
• Thermoelectricmaterials, such as Cu₄Mn₂Te₄ by the melting-quenching-SPS method.

Tellurium, in combination with potassium hydroxide, mediates the quantitative pinacolization of aromatic carbonyl compounds.

Informations sur la sécurité

• Pictogrammes: GHS08,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H317,H332,H360Df,H362,H413
• Conseils de prudence: P260 - P263 - P273 - P280 - P304 + P340 + P312 - P308 + P313
• Classification des risques: Acute Tox. 4 Inhalation - Aquatic Chronic 4 - 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 2
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges