483702
Germanium(IV) oxide
≥99.99% trace metals basis
Synonym(s):
Germanium dioxide
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About This Item
Linear Formula:
GeO2
CAS Number:
Molecular Weight:
104.64
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.23
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Quality Level
Assay
≥99.99% trace metals basis
form
powder
mp
>400 °C (lit.)
solubility
ethylene glycol: soluble
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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General description
Germanium(VI) oxide, also known as germania or germanium dioxide, is a white or off-white powder. It is a refractory metal oxide with a high melting point (1,600 °C) and offers excellent chemical resistance. In addition, germanium(VI) oxide has excellent optoelectronic properties that have made it a valuable material in the semiconducting industry. It has a high refractive index of approximately 2.1, which is higher than that of many other semiconductor materials, and a low absorption coefficient. These properties make it useful for applications such as waveguides, antireflective coatings, and high-index contrast coatings. In addition, germanium(VI) has a high bandgap of about 3.1 eV coupled with relatively high transparency in the infrared region of the electromagnetic spectrum, which makes it useful for applications such as infrared detectors, LEDs, and solar cells.
Application
Building block for inorganic nanowires. Used in the synthesis of ultra-high refractive index and ultra-low loss optical waveguides.
Signal Word
Warning
Hazard Statements
Precautionary Statements
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
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Rao, C.N.R., et al.
Journal of Materials Chemistry, 14, 440-440 (2004)
Jie Liang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(71), 17879-17884 (2017-11-10)
The attractive properties of layered inorganic materials, which make them suitable for numerous applications in chemical industries and life sciences, originated from their crystalline framework structures. Here, we report a new layered germanate PKU-21, which was prepared by the hydrothermal
Imoto, K.
Optronics, 260, 116-116 (2003)
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
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
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