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199478

Sigma-Aldrich

Germanium(IV) oxide

(crystalline powder), 99.998% trace metals basis

Synonym(s):

Germanium dioxide

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25 G
RM 984.00
100 G
RM 3,471.00

About This Item

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

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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

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Germanium(IV) oxide (crystalline powder), 99.998% trace metals basis

199478

Germanium(IV) oxide

Germanium(IV) oxide ≥99.99% trace metals basis

483702

Germanium(IV) oxide

Germanium powder, −100 mesh, ≥99.999% trace metals basis

327395

Germanium

Germanium(IV) iodide 99.99% trace metals basis

383252

Germanium(IV) iodide

assay

99.998% trace metals basis

assay

≥99.99% trace metals basis

assay

≥99.999% trace metals basis

assay

99.99% trace metals basis

form

(crystalline powder)

form

powder

form

powder

form

powder

mp

>400 °C (lit.)

mp

>400 °C (lit.)

mp

937 °C (lit.)

mp

-

density

4.23 g/cm3

density

4.23 g/cm3

density

5.35 g/mL at 25 °C (lit.)

density

4.32 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

application(s)

-

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

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.

Pictograms

Exclamation mark
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
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCR0077
    MKCQ5363
    MKCP8938
    MKCP4930
    MKCN4937

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    Zita Oláh et al.
    Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 149, 75-82 (2019-04-29)
    The radiochemical separation of n.c.a. arsenic on its own or for radio-labelling purposes usually involves the issue of reducing arsenic(V). Numerous approaches for reducing pentavalent arsenic have been examined. A novel HPLC method has also been presented for accessing the
    P. M. Lambert
    Inorganic chemistry, 37(6), 1352-1357 (2001-10-24)
    The gel chemistry of germanium is explored through the formation and composition of a hydrous metal oxide precursor gel used in the preparation of the HfGeO(4) and HfGeO(4):Ti X-ray phosphors. The enhanced solubility of hexagonal GeO(2) in dilute ammoniacal solutions
    Xinguo Hong et al.
    The Review of scientific instruments, 80(7), 073908-073908 (2009-08-07)
    We describe an approach for acquiring high quality x-ray absorption fine structure (XAFS) spectroscopy spectra with wide energy range at high pressure using diamond anvil cell (DAC). Overcoming the serious interference of diamond Bragg peaks is essential for combining XAFS
    Sarah L Sewell et al.
    Dalton transactions (Cambridge, England : 2003), (29)(29), 3857-3865 (2008-07-17)
    Biomimetic synthesis is emerging as an advantageous alternative to the harsh synthetic conditions traditionally used in metal oxide syntheses techniques. Silaffins, proteins from the C. fusiformis diatom, form silica in an aqueous environment under benign conditions. Amine terminated PAMAM and
    E A Anashkina et al.
    Optics express, 20(24), 27102-27107 (2012-11-29)
    We report generation of femtosecond optical pulses tunable in the 1.6-2.5 μm range using GeO2-doped core silica-cladding fibers. Optical solitons with a duration of 80-160 fs have been measured by the FROG technique in the 2-2.3 μm range. To the
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