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Germanium oxide

Germanium oxide Structure
Germanium oxide structure
CAS No.
1310-53-8
Chemical Name:
Germanium oxide
Synonyms
GeO2;GERMANIUM DIOXIDE;GERMANIUM(IV) OXIDE;Germanic acid;Germania;germanicacid;dioxogermane;germanic oxide;Germaniumdioxid;GERMANIUM OXIDE
CBNumber:
CB6412641
Molecular Formula:
GeO2
Lewis structure
geo2 lewis structure
Molecular Weight:
104.64
MDL Number:
MFCD00011030
MOL File:
1310-53-8.mol
Last updated:2024-10-24 21:11:45
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Germanium oxide Properties

Melting point >400 °C(lit.)
Density 6.239 g/mL at 25 °C
vapor pressure 0Pa at 25℃
refractive index 1.99
storage temp. no restrictions.
solubility ethylene glycol: soluble
form Powder/Flake/Crystalline/Beads/Lump, Etc.
Specific Gravity 6.239
color White
Water Solubility 0.4 g/100 mL
Crystal Structure Quartz type
crystal system Three sides
Merck 14,4409
Solubility Product Constant (Ksp) pKsp: 57
Space group P3221
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.49870.49870.565290901200.1217
InChIKey YBMRDBCBODYGJE-UHFFFAOYSA-N
LogP 4.14 at 20℃
CAS DataBase Reference 1310-53-8(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 5O6CM4W76A
NIST Chemistry Reference Germanium dioxide(1310-53-8)
EPA Substance Registry System Germanium oxide (GeO2) (1310-53-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
Hazard Codes  Xn
Risk Statements  22
Safety Statements  22-24/25
WGK Germany  1
RTECS  LY5240000
TSCA  Yes
HS Code  2825 60 00
Toxicity LD50 i.p. in rats: 750 mg/kg, Rosenfeld, Wallace, Arch. Ind. Hyg. Occup. Med. 8, 466 (1953)
NFPA 704
0
2 0

Germanium oxide price More Price(39)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 199478 Germanium(IV) oxide (crystalline powder), 99.998% trace metals basis 1310-53-8 10g $145 2024-03-01 Buy
Sigma-Aldrich 199478 Germanium(IV) oxide (crystalline powder), 99.998% trace metals basis 1310-53-8 25g $302 2024-03-01 Buy
Sigma-Aldrich 1.12177 Germanium(IV) oxide 99+ 1310-53-8 2g $80.7 2024-03-01 Buy
Sigma-Aldrich 1.12177 Germanium(IV) oxide 99+ 1310-53-8 5G $145 2024-03-01 Buy
Sigma-Aldrich 1.12177 Germanium(IV) oxide 99+ 1310-53-8 25g $574 2024-03-01 Buy
Product number Packaging Price Buy
199478 10g $145 Buy
199478 25g $302 Buy
1.12177 2g $80.7 Buy
1.12177 5G $145 Buy
1.12177 25g $574 Buy

Germanium oxide Chemical Properties,Uses,Production

Uses

Germanium oxide 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.

Preparation

Germanium oxide 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.

Reactions

Germanium oxide 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.

Description

Germanium oxide also called Germanium dioxide is the oxide of germanium, an inorganic compound, featuring the chemical formula GeO2. It is formed as a passivation layer on pure germanium after exposure to oxygen. Germanium dioxide generally has a low toxicity, but shows severe nephrotoxicity at higher doses. Germanium dioxide is still offered on the market in some questionable miracle therapies. Exposure to high doses of germanium dioxide can lead to germanium poisoning.

Chemical Properties

White powder, hexagonal, tetragonal, and amorphous.
Germanium oxide.jpg

Uses

Germanium oxide can be used in Phosphors, transistors and diodes, infraredtransmitting glass.

Uses

When Germanium dioxide is 99.999% pure, it is used as a semiconductor in transistors, in diodes, and to make special infrared transmitting glass.

Uses

Germanium dioxide is used as an optical material for wide-angle lenses and in optical microscope objective lenses. It is used as a catalyst in the preparation of polyethylene terephthalate resin. Further, it is used as a feedstock for the manufacturing of phosphors and semiconductor materials. It is also used in transistors and diodes, and infrared transmitting glass.

Flammability and Explosibility

Not classified

Safety Profile

Poison by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

The 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.]

Structure and conformation

Germanium oxide ccurs in two crystalline and one amorphous modifications: (1) a tetragonal rutile form, refractive index 2.05, density 6.24 g/cm3 at 20°C. (2) white hexagonal quartz modification, refractive index 1.735, density 4.70 g/cm3 at 18°C, and (3) a glassy amorphous form, refractive index 1.607, density 3.64 g/cm3 at 20°C. The tetragonal form is practically insoluble in water, while the hexagonal and the amorphous modifications have low solubilities; 0.45 and 0.52% respectively, at 25°C. Aqueous solutions are acidic due to formation of metagermanic acid, H2GeO3. Hexagonal modification converts to a tetragonal crystal system when heated at 350°C in water under pressure. Both crystalline forms convert to a glass-like amorphous GeO2 when heated at 1,100°C.

Germanium oxide Preparation Products And Raw materials

Raw materials

GERMANIUM(IV) CHLORIDE

Preparation Products

GERMANIUM(IV) CHLORIDE

Germanium oxide Suppliers

Global( 367)Suppliers
Supplier Tel Email Country ProdList Advantage
Zhuoer Chemical Co., Ltd
02120970332; +8613524231522 sales@zhuoerchem.com China 2904 58
Hebei Weibang Biotechnology Co., Ltd 		+8615531157085 abby@weibangbio.com China 8812 58
Shaanxi Dideu Medichem Co. Ltd 		+86-29-81148696 +86-15536356810 1022@dideu.com China 3882 58
Hebei Mojin Biotechnology Co., Ltd 		+86 13288715578 +8613288715578 sales@hbmojin.com China 12840 58
Hebei Kingfiner Technology Development Co.Ltd 		+86-15532196582 +86-15373005021 lisa@kingfinertech.com China 3010 58
Hebei Jingbo New Material Technology Co., Ltd 		+8619931165850 hbjbtech@163.com China 1000 58
Hebei Saisier Technology Co., LTD 		+86-18400010335 +86-18034520335 admin@hbsaisier.cn China 1015 58
Hebei Longbang Technology Co., LTD 		+86-18633929156 +86-18633929156 admin@hblongbang.com China 941 58
HebeiShuoshengImportandExportco.,Ltd 		+86-18532138899 +86-18532138899 L18532138899@163.com China 939 58
Shanghai Daken Advanced Materials Co.,Ltd 		+86-371-66670886 info@dakenam.com China 18777 58
Supplier Advantage
Zhuoer Chemical Co., Ltd
58
Hebei Weibang Biotechnology Co., Ltd 		58
Shaanxi Dideu Medichem Co. Ltd 		58
Hebei Mojin Biotechnology Co., Ltd 		58
Hebei Kingfiner Technology Development Co.Ltd 		58
Hebei Jingbo New Material Technology Co., Ltd 		58
Hebei Saisier Technology Co., LTD 		58
Hebei Longbang Technology Co., LTD 		58
HebeiShuoshengImportandExportco.,Ltd 		58
Shanghai Daken Advanced Materials Co.,Ltd 		58

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View Lastest Price from Germanium oxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Germanium oxide pictures 2024-11-25 Germanium oxide
1310-53-8
 US $6.00 / kg 1kg 99% 2000KG/Month HebeiShuoshengImportandExportco.,Ltd
Germanium oxide pictures 2024-11-25 Germanium oxide
1310-53-8
 US $6.00 / kg 1kg More than 99% 2000KG/Month Hebei Longbang Technology Co., Ltd
Germanium oxide pictures 2024-11-07 Germanium oxide
1310-53-8
 US $8.00 / kg 1kg 99% 200000 Hebei Jingbo New Material Technology Co., Ltd
  • Germanium oxide pictures
  • Germanium oxide
    1310-53-8
  • US $6.00 / kg
  • 99%
  • HebeiShuoshengImportandExportco.,Ltd
  • Germanium oxide pictures
  • Germanium oxide
    1310-53-8
  • US $6.00 / kg
  • More than 99%
  • Hebei Longbang Technology Co., Ltd
  • Germanium oxide pictures
  • Germanium oxide
    1310-53-8
  • US $8.00 / kg
  • 99%
  • Hebei Jingbo New Material Technology Co., Ltd

Germanium oxide Spectrum

Germanium oxide(1310-53-8)IR1Germanium oxide(1310-53-8)Raman

1310-53-8(Germanium oxide)Related Search:

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