Germanium dioxide

Germanium dioxide
Tetragonal rutile form
Names
IUPAC name
Germanium dioxide
Other names
Germanium(IV) oxide
Germania
ACC10380
G-15
Neutral germanium oxide (1:2)
Germanic oxide
Salt of germanium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.801 Edit this at Wikidata
RTECS number
  • LY5240000
UNII
  • InChI=1S/GeO2/c2-1-3 checkY
    Key: YBMRDBCBODYGJE-UHFFFAOYSA-N checkY
  • InChI=1/GeO2/c2-1-3
    Key: YBMRDBCBODYGJE-UHFFFAOYAG
  • O=[Ge]=O
Properties
GeO2
Molar mass 104.6388 g/mol
Appearance White powder or colourless crystals
Density 4.228 g/cm3
Melting point 1,115 °C (2,039 °F; 1,388 K)
4.47 g/L (25 °C)
10.7 g/L (100 °C)
Solubility Soluble in HF,
insoluble in other acid. Soluble in strong alkaline conditions.
−34.3·10−6 cm3/mol
1.650
Structure
Hexagonal
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
3700 mg/kg (rat, oral)
Related compounds
Other anions
Germanium disulfide
Germanium diselenide
Other cations
Carbon dioxide
Silicon dioxide
Tin dioxide
Lead dioxide
Related compounds
Germanium monoxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Germanium dioxide, also called germanium(IV) oxide, germania, and salt of germanium,[1] is an inorganic compound with the chemical formula GeO2. It is the main commercial source of germanium. It also forms as a passivation layer on pure germanium in contact with atmospheric oxygen.

  1. ^ "US Patent Application for Esterification catalysts Patent Application (Application #20020087027 issued July 4, 2002) - Justia Patents Search". patents.justia.com. Retrieved 2018-12-05.