Dioxogermane
Basic information
- CAS
1310-53-8- Standard SMILES
[O]=[Ge]=[O]- InChIKey
YBMRDBCBODYGJE-UHFFFAOYSA-N- Molecular formula
- GeO2
- Average molar mass
- 104.63 g/mol
- Monoisotopic mass
- 105.911007
Names & identifiers
- Preferred name
- Dioxogermane
- IUPAC
- dioxogermane
- English name
- Germanium oxide
- Molecular formula
- GeO2
- Molecular weight
- 104.64
Names & synonyms
1310-53-8dioxogermaneGermanic acidGeO2DioxogermaniumGermanic oxideGermanium tetroxideWLN: GE O2MFCD00011030Germanium Oxide Nanoparticle DispersionSCHEMBL105462Germanium(IV) oxide 99.999%
Show more names
GERMANIUM DIOXIDEGERMANIUM(IV) OXIDEGermaniumdioxidGermaniagermanicacidGERMANIUM OXIDE
NSC294212AKOS015904129FG76402GERMANIUM DIOXIDE, 99.999%Germanium(IV) oxide (hexagonal, quartz type) GECS-0196667NS00076163F20443
Database identifiers
- CAS
1310-53-8- PubChem CID
- 14796
- Nikkaji
- J3.631.938K
Properties
Computed structural properties
- Topological polar surface area
- 34.1 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 0
- Heavy atoms
- 3
- Formal charge
- 0
- Complexity
- 18.3
Experimental & physicochemical properties
Physical DescriptionDry Powder
Physicochemical properties
- Melting point
- 400 °C · >400 °C(lit.)
- Density
- 6.239 g/mL · 6.239 g/mL at 25 °C
- bulk density
- 1430 kg/m3 · 1430kg/m3
- vapor pressure
- 0 Pa · 0Pa at 25℃
- refractive index
- 1.99 · 1.99
- storage temp.
- no restrictions.
- solubility
- ethylene glycol: soluble
- form
- Powder/Flake/Crystalline/Beads/Lump, Etc.
- Specific Gravity
- 6.239 · 6.239
- color
- White
- Water Solubility
- 0.4 g/100 · 0.4 g/100 mL
- Specific Heat Capacity
- 0.5 J/ · Cp(crystal): 0.5 J/(g·K), at 25℃
- Crystal Structure
- Quartz type
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Hazard information
Regulatory Information
Chemical: Germanium oxide (GeO2)
Germanium oxide (GeO2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Germanium oxide (GeO2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Germanium oxide (GeO2): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Safety data
- PPE
- dust mask type N95 (US), Eyeshields, Faceshields, Gloves
- wgk
- 1
- tsca
- TSCA listed
- rtecs
- LY5240000
- hs_code
- 2825 60 00
- Toxicity
- LD50 i.p. in rats: 750 mg/kg, Rosenfeld, Wallace, Arch. Ind. Hyg. Occup. Med. 8, 466 (1953)
- risk_code
- 22
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xn
- safety_code
- 22-24/25
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H302
- REACH Registrations
- Active
- Hazard Classifications
- Acute Tox. 4 Oral
- Precautionary statements
- P264-P270-P301+P312-P501
- Hazardous Substances Data
- 1310-53-8(Hazardous Substances Data)
Chemistry & industry
Uses & manufacturing
U.S. Production2023: 43,676 lb
Consumer UsesCatalyst
Industry UsesCatalyst
General Manufacturing Information
All Other Basic Inorganic Chemical Manufacturing
Germanium oxide (GeO2): ACTIVE
Applications
UsesGermanium 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.
DescriptionGermanium 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.
UsesGermanium 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.
UsesGermanium oxide can be used in Phosphors, transistors and diodes, infraredtransmitting glass.
UsesWhen Germanium dioxide is 99.999% pure, it is used as a semiconductor in transistors, in diodes, and to make special infrared transmitting glass.
Preparation methods
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Related reactions
2 records
Compound notes
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