199478

Germanium(IV) oxide

(crystalline powder), 99.998% trace metals basis

• Synonym(s): Germanium dioxide
• Linear Formula: GeO₂
• CAS Number: 1310-53-8
• Molecular Weight: 104.64
• EC Number: 215-180-8
• MDL number: MFCD00011030
• UNSPSC Code: 12352303
• PubChem Substance ID: 24851918
• NACRES: NA.23

Properties

• Quality Level: 200
• Assay: 99.998% trace metals basis
• form: (crystalline powder)
• mp: >400 °C (lit.)
• density: 4.23 g/cm³
• application(s): battery manufacturing
• SMILES string: O=[Ge]=O
• InChI: 1S/GeO2/c2-1-3
• InChI key: YBMRDBCBODYGJE-UHFFFAOYSA-N

Description

General description

Germanium(IV) oxide (GeO₂) is a semiconductor material known for its notable optical properties and high refractive index. It finds extensive use in various applications within electronics and optics. This compound is slightly soluble in water and acts as a catalyst in industrial processes. Additionally, GeO₂ is employed in the development of sensors for gas detection and other chemical species, utilizing its semiconductor characteristics to enhance sensitivity and response times.

Application

Germanium(IV) oxide can be used:

• To prepare glasses for nuclear radiation shielding and ultra-broadband amplification. For example, germanium and bismuth oxide glasses.
• As a precursor to synthesize GeO₂/TiO₂ nanocomposites that can be used for the photocatalysis of organic pollutants.
• As an anode material for lithium-ion batteries due to its high lithium storage capacity, thermostability, and large volume expansion during the charge–discharge process.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H302
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves