483702
Germanium(IV) oxide
≥99.99% trace metals basis
Synonym(s):
Germania, Germanium oxide, Germanium dioxide
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About This Item
Linear Formula:
GeO2
CAS Number:
Molecular Weight:
104.64
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-180-8
MDL number:
assay
≥99.99% trace metals basis
form
powder
reaction suitability
core: germanium
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
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.
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wgk
WGK 3
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Articles
Three approaches generate white light, including LED-based down-conversion for broader applications.
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)
Rao, C.N.R., et al.
Journal of Materials Chemistry, 14, 440-440 (2004)
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 483702-25G | 04061832390109 |
| 483702-5G | 04061832390154 |