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483001

Sigma-Aldrich

Germanium(IV) oxide

powder, 99.999% trace metals basis

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Synonym(s):
Germanium dioxide
Linear Formula:
GeO2
CAS Number:
Molecular Weight:
104.64
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.999% trace metals basis

form

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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1 of 4

This Item
1994784837021.12177
Germanium(IV) oxide powder, 99.999% trace metals basis

Sigma-Aldrich

483001

Germanium(IV) oxide

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

Sigma-Aldrich

199478

Germanium(IV) oxide

Germanium(IV) oxide ≥99.99% trace metals basis

Sigma-Aldrich

483702

Germanium(IV) oxide

Germanium(IV) oxide 99+

Sigma-Aldrich

1.12177

Germanium(IV) oxide

form

powder

form

(crystalline powder)

form

powder

form

solid

mp

>400 °C (lit.)

mp

>400 °C (lit.)

mp

>400 °C (lit.)

mp

1115 °C

density

4.23 g/cm3

density

4.23 g/cm3

density

4.23 g/cm3

density

4.23 g/cm3 at 25 °C

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

200

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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25G
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Xitong Chen et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(49), 11913-11919 (2017-08-12)
The development of novel photocatalysts usually centers on features such as band structures, various nano-, micro-, or macro-forms, and composites in efforts to tune their light absorption and charge separation efficiency. In comparison, the selectivity of photocatalysts with respect to
Jiaqiang Wang et al.
Chemical communications (Cambridge, England), 46(29), 5250-5252 (2010-06-25)
Adding a small amount of commercial GeO(2) into aqueous suspension significantly enhanced the photocatalytic activity of titania-based photocatalysts for the degradation of dyes.
V V Dvoyrin et al.
Optics express, 19(9), 7992-7999 (2011-06-07)
A novel all-fiber laser based on a highly GeO2-doped dispersion-shifted Tm-codoped fiber, pumped at 1.56 µm wavelength and lasing at 1.862 µm wavelength with a slope efficiency up to 37% was demonstrated. The single-mode Tm-doped fiber with the 55GeO2-45SiO2 core
M Gunji et al.
Nanotechnology, 23(38), 385603-385603 (2012-09-06)
We report on the directed synthesis of germanium oxide (GeO(x)) nanowires (NWs) by locally catalyzed thermal oxidation of aligned arrays of gold catalyst-tipped germanium NWs. During oxygen anneals conducted above the Au-Ge binary eutectic temperature (T > 361 °C), one-dimensional
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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