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Merck

483702

Germanium(IV)-oxid

≥99.99% trace metals basis

Synonym(e):

Germaniumdioxid

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€ 96,90

25 G

€ 331,00

€ 96,90

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Über diesen Artikel

Lineare Formel:
GeO2
CAS-Nummer:
1310-53-8
Molekulargewicht:
104.64
NACRES:
NA.23
PubChem Substance ID:
24871912
UNSPSC Code:
12352303
EC Number:
215-180-8
MDL number:
MFCD00011030

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Produktname

Germanium(IV)-oxid, ≥99.99% trace metals basis

InChI key

YBMRDBCBODYGJE-UHFFFAOYSA-N

InChI

1S/GeO2/c2-1-3

SMILES string

O=[Ge]=O

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

Quality Level

100

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Dieser Artikel
199478483001383252
Germanium(IV)-oxid ≥99.99% trace metals basis

Sigma-Aldrich

483702

Germanium(IV)-oxid

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

Sigma-Aldrich

199478

Germanium(IV)-oxid

Germanium(IV)-oxid powder, 99.999% trace metals basis

Sigma-Aldrich

483001

Germanium(IV)-oxid

Germanium(IV)-iodid 99.99% trace metals basis

Sigma-Aldrich

383252

Germanium(IV)-iodid

assay

≥99.99% trace metals basis

assay

99.998% trace metals basis

assay

99.999% trace metals basis

assay

99.99% trace metals basis

form

powder

form

(crystalline powder)

form

powder

form

powder

density

4.23 g/cm3

density

4.23 g/cm3

density

4.23 g/cm3

density

4.32 g/mL at 25 °C (lit.)

mp

>400 °C (lit.)

mp

>400 °C (lit.)

mp

>400 °C (lit.)

mp

-

solubility

ethylene glycol: soluble

solubility

-

solubility

-

solubility

-

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

battery manufacturing

application(s)

-

Application

Building block for inorganic nanowires.[1] Used in the synthesis of ultra-high refractive index and ultra-low loss optical waveguides.[2]

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302

Hazard Classifications

Acute Tox. 4 Oral

Lagerklasse

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCX7655
MKCW7502
MKCS2256
MKCR3588
MKCS6146

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

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)
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
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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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Can you please check the particle size? I need it to answer the paper revision(until today...), help me please.

    1 answer

    1. The particle size of this material is not determined on a lot-by-lot basis. However, historical data indicates that this material is less than 74 um or -200 mesh.

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