Oxide Powder

Germanium Oxide GeO2 powder CAS 1310-53-8

Item No.: TR-GeO2
Germanium dioxide, the molecular formula GeO2, is a white powder. Mainly used to make metal germanium, also used for spectral analysis and semiconductor materials.
Purity: 99.99%, 99.999%
Particle size: 100mesh-300mesh
Germanium Oxide GeO2 Powder Properties

About Germanium Oxide GeO2 powder:
Germanium dioxide is an inorganic compound with the molecular formula GeO2, which is the dioxide of germanium and has the same electronic form as carbon dioxide. It is a white powder or colorless crystal, with a hexagonal crystal system (stable at low temperature) slightly soluble in water and insoluble square germanium dioxide, also known as germanium oxide, germanium, germanium salt, germanium dioxide is an inorganic compound, chemical formula GeO2. It is the main commercial source of germanium. It also forms a passivation layer when pure germanium is in contact with atmospheric oxygen. Two kinds of crystal systems, the transition temperature is 1033℃. Mainly used in making metal germanium, also used in spectral analysis and semiconductor materials.
The two main crystalline forms of GeO2 are hexagonal and tetragonal. The hexagonal GeO2 has the same structure as β quartz and the germanium coordination number is 4.Tetra-GeO2 (a soft mineral) has the rutile-like structure commonly found in stibnite. The coordination number of germanium in this subject is 6. The amorphous (glassy) form of GeO2 is similar to that of molten silica. Feel free to send an inquiry to get the latest price if you would like to buy Germanium Oxide GeO2 powder in bulk.

Performance of Germanium Oxide GeO2 powder:

Germanium Oxide is a stable, white powder that is most commonly extracted from sphalerite zinc ores and lignite coal fly ash. Germanium concentrates can be treated via a chlorine distillation method that produces germanium tetrachloride (GeCl4).  This form of Germanium Oxide has a hexagonal crystal structure and is soluble in water at a rate of 4.5g per litre (25°C).

Technical Parameter of Germanium Oxide GeO2 powder:

Elements Concentration
(ppm wt)
GeO2% 99.999min
As(ppm) 0.5max
Fe(ppm) 0.1max
Cu(ppm) 0.2max
Ni(ppm) 0.2max
Pb(ppm) 0.1max
Co(ppm) 0.2max
Al(ppm) 0.1max
Total content of impurity   10max

How is Germanium Oxide GeO2 powder produced?
Germanium dioxide can be prepared in both crystalline and amorphous forms. Under ambient pressure, the amorphous structure is formed by a network composed of GeO4 tetrahedron. When the pressure increases to about 9 GPa, the mean coordination number of germanium increases steadily from 4 to about 5, and the germanium -O bond distance also increases correspondingly. At higher pressures, the germanium coordination number increases to 6 when it reaches about 15 GPa, and the dense network structure is formed by GeO6 octahedron. When the pressure is subsequently reduced, the structure reverts to a tetrahedral form. At high pressure, the rutile form is converted to the orthogonal CaCl2 form.
The hydrolysis method of germanium tetrachloride is to add 6.5 times the volume of distilled water to germanium tetrachloride, stir it and place it for one day and night to generate germanium dioxide precipitation, and wash it with cold water until the lotion does not contain Cl-. The germanium dioxide product was dried at 200℃.
Applications of Germanium Oxide GeO2 powder:
Germanium dioxide has a wide range of applications:
The refractive index (1.7) and optical dispersion properties of germanium dioxide enable it to be used as an optical material for wide-angle lenses, optical microscope objectives, and fiber wire cores.
Germanium and its glass oxide GeO2 are both transparent to infrared spectra. The glass can be made into infrared Windows and lenses for use in military applications, luxury cars and night vision technology for thermal imaging cameras.
GeO2 is preferred over other infrared clear glasses because of its superior mechanical strength and is, therefore, more suitable for rugged military applications.
Mixtures of silicon dioxide and germanium are used as optical materials in optical fibers and waveguides. Controlling the proportion of elements gives precise control of the refractive index.
Germanium dioxide is used as a raw material in the production of some phosphors and semiconductor materials.
In algal culture, germanium dioxide is used to inhibit the growth of diatoms that are not needed in algal culture because pollution from relatively fast-growing diatoms tends to inhibit or exceed the growth of the original algal strain.GeO2 is easily absorbed by diatoms, resulting in silicon being replaced by germanium in the internal biochemical process of diatoms, leading to a significant decrease in the growth rate of diatoms, or even complete disappearance, with almost no effect on non-diatom species.
Used to make germanium, also used in the electronics industry.Used as a semiconductor material. It can be used as the raw material of germanium metal and other germanium compounds, as a catalyst for making polyethylene terephthalate resin, as well as spectral analysis and semiconductor materials. Can produce optical glass phosphors, can be used as a catalyst for petroleum refining conversion, dehydrogenation, gasoline distillate adjustment, color film and polyester fiber production. Not only so, germanium dioxide or polymerization catalyst, glass containing germanium dioxide has a high refractive index and dispersion performance, as a wide-angle lens camera and microscope, with the development of technology, germanium dioxide is widely used in the production of high purity metal germanium, germanium compounds, chemical catalysts and pharmaceutical industry, PET resin, electronic devices, etc., need to pay attention to is the shape of the germanium dioxide though and organic germanium (Ge - 132), but it has toxicity, can not taking.
Storage Condition of Germanium Oxide GeO2 powder:
Germanium Oxide GeO2 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition, should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Germanium Oxide GeO2 powder:
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection.
Germanium Oxide GeO2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Germanium Oxide GeO2 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Germanium Oxide GeO2 Powder Properties

Other Names Germanium dioxide, Germanic acid, Diketogermane, Dioxogermane,
Germanium(IV) Oxide, Germania, Germane, dioxo, Oxogermane,
Germanic Oxide (crystalline)
CAS No. 1310-53-8
Compound Formula GeO2
Molecular Weight 104.6 g/mol
Appearance White Powder
Melting Point 1,115° C (2,039° F)
Solubility in water N/A
Density 6.239 g/cm3
Purity N/A
Particle Size N/A
Boling point N/A
Specific Heat N/A
Thermal Conductivity N/A
Thermal Expansion N/A
Young's Modulus N/A
Exact Mass 91.9317 g/mol
Monoisotopic Mass 105.911007 Da

Germanium Oxide GeO2 Powder Health & Safety Information

Safety Warning Warning
Hazard Statements H302-H332
Flashing point N/A
Hazard Codes Xn
Risk Codes 22
Safety Statements N/A
RTECS Number LY5240000
Transport Information NONH
WGK Germany 1
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