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Germanium oxide

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Company Name: Henan DaKen Chemical CO.,LTD.
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Products Intro: Product Name:Germanium oxide
CAS:1310-53-8
Purity:99% Package:100g,500g,1KG,10KG,100KG
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
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Products Intro: CAS:1310-53-8
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
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Products Intro: Product Name:Germanium oxide
CAS:1310-53-8
Company Name: Nanjing ChemLin Chemical Industry Co., Ltd.
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Products Intro: CAS:1310-53-8
Purity:99.9% Package:g-Kg
Company Name: career henan chemical co
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Products Intro: Product Name:Germanium oxide
CAS:1310-53-8
Purity:99% Package:1kg;1USD

Lastest Price from Germanium oxide manufacturers

  • Germanium oxide
  • US $1.00 / kg
  • 2018-12-20
  • CAS:1310-53-8
  • Min. Order: 1kg
  • Purity: 99%
  • Supply Ability: Customized
Germanium oxide Basic information
Uses Preparation Reactions
Product Name:Germanium oxide
Synonyms:Germanium(IV)oxide,elec.gr.(99.9999%-Ge)PURATREM;germanium(iv) oxide, puratronic;Germaniumdioxid;GERMANIUM(IV) OXIDE: 99.98% (METALS BASIS);GERMANIUM(IV) OXIDE, 99.9999%;Germanium(IV) oxide, 99.99% (metals basis);Germanium(IV) oxide, 99.9999% (metals basis);Germanium(IV) oxide, Puratronic(R), 99.999% (metals basis)
CAS:1310-53-8
MF:GeO2
MW:104.64
EINECS:215-180-8
Product Categories:metal oxide
Mol File:1310-53-8.mol
Germanium oxide Structure
Germanium oxide Chemical Properties
Melting point >400 °C(lit.)
density 6.239 g/mL at 25 °C
refractive index 1.99
storage temp. Storage temperature: no restrictions.
solubility ethylene glycol: soluble
form Powder/Flake/Crystalline/Beads/Lump, Etc.
color White
Water Solubility 0.4 g/100 mL
Merck 14,4409
CAS DataBase Reference1310-53-8(CAS DataBase Reference)
NIST Chemistry ReferenceGermanium dioxide(1310-53-8)
EPA Substance Registry SystemGermanium oxide (GeO2)(1310-53-8)
Safety Information
Hazard Codes Xn
Risk Statements 22
Safety Statements 22-24/25
WGK Germany 1
RTECS LY5240000
TSCA Yes
HS Code 2825 60 00
Hazardous Substances Data1310-53-8(Hazardous Substances Data)
ToxicityLD50 i.p. in rats: 750 mg/kg, Rosenfeld, Wallace, Arch. Ind. Hyg. Occup. Med. 8, 466 (1953)
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
Germanium oxide Usage And Synthesis
UsesGermanium dioxide has high refractive index and infrared transmission, for which it is used in industrial glasses. It also is used in preparation of high purity grade germanium.
PreparationGermanium dioxide is prepared by heating germanium with oxygen at elevated temperatures, or by hydrolysis of germanium(IV) halides:
GeCl4 + 2H2O → GeO2 + 4HCl
It also is prepared by oxidation of germanium(II) sulfide:
GeS + 2O2 GeO2 + SO2
The product obtained in the above reactions is in the form of hexagonal modification of GeO2.
ReactionsGermanium dioxide is reduced to germanium metal when heated with hydrogen at 1,000°C:
GeO2 + 2H2 → Ge + 2H2O
When heated with germanium, the dioxide is reduced to monoxide, GeO:
GeO2 + Ge 2GeO
Treatment with hydrochloric acid yields germanium(IV) chloride:
GeO2 + 4HCl → GeCl4 + 2H2O
In a strongly acidic solution, its reaction with hydrogen sulfide yields an amorphous modification of germanium(IV) sulfide, GeS2.
Melting a mixture of germanium dioxide and metal oxides produces orthoand metagermanates of the corresponding metals. Aqueous solutions of germanate react with molybdic and tungstic acids forming heteropoly acids of varying compositions.
Chemical PropertiesWhite powder, hexagonal, tetragonal, and amorphous.
UsesPhosphors, transistors and diodes, infraredtransmitting glass
Safety ProfilePoison by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes.
Purification MethodsThe oxide (GeO2) is usually prepared by hydrolysing redistilled GeCl4 and igniting it in order to remove H2O and chloride. It can be further purified by dissolving in hot H2O (solubility is 4g/L cold) evaporating and drying the residual crystalline solid. When the soluble form (which is produced in H2O at 355o) is heated for 100hours, it is converted to the insoluble form. This form is stable at temperatures up to 1033o, and fusion at 1080o for 4hours causes complete de-vitrification and it reverts to the soluble form. [Müller & Blank J Am Chem Soc 46 2358 1924, Dennis & Laubengayer J Am Chem Soc 47 1945 1925, Laubengayer & Morton J Am Chem Soc 54 2303 1932, Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 706 1963.]
Germanium oxide Preparation Products And Raw materials
Raw materialsGermanium chloride
Preparation ProductsGermanium chloride
Tag:Germanium oxide(1310-53-8) Related Product Information
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