1.12356

Tellurium dioxide

99.5+

• Synonym(s): Tellurium dioxide, Tellurium(IV) oxide
• Empirical Formula (Hill Notation): O₂Te
• CAS Number: 7446-07-3
• Molecular Weight: 159.60
• MDL number: MFCD00011263
• UNSPSC Code: 12352303
• EC Index Number: 231-193-1
• NACRES: NA.22

Properties

• Quality Level: 200
• form: solid
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• mp: 733 °C
• density: 6.02 g/cm³ at 20 °C
• storage temp.: no temp limit
• InChI: 1S/O2Te/c1-3-2
• InChI key: LAJZODKXOMJMPK-UHFFFAOYSA-N

Description

Application

• Facile sonochemical synthesis of tellurium and tellurium dioxide nanoparticles: This study presents a method for synthesizing tellurium nanostructures by reducing TeCl4 to Te using ultrasonic irradiation in methanol, also exploring the oxidation process to produce tellurium dioxide (Arab, Mousavi-Kamazani, 2017).


• Ultrathin tellurium dioxide: emerging direct bandgap semiconductor: This article discusses the properties of monolayer tellurium dioxide as a new 2D semiconducting oxide, highlighting its direct bandgap and high mobility, which are significant for various applications (Guo et al., 2018).

Analysis Note

Assay (gravimetrically): ≥ 99.5 %
Identity (ICP-OES): passes test

Safety Information

• Pictograms: GHS07,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H317 - H332 - H360Df - H362 - H411
• Precautionary Statements: P260 - P263 - P273 - P280 - P304 + P340 + P312 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B
• Storage Class Code: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable