Germanium oxide , 99.99%MetalsBasis, ≥200 , 1310-53-8

Synonym(s):
Germanium dioxide;Germanium(IV) oxide

CAS NO.：1310-53-8

Empirical Formula: GeO2

Molecular Weight: 104.64

MDL number: MFCD00011030

EINECS: 215-180-8

PRODUCT 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/nm: 0.4987
  • b/nm: 0.4987
  • c/nm: 0.5652
  • α/o: 90
  • β/o: 90
  • γ/o: 120
  • V/nm3: 0.1217
• InChIKey: YBMRDBCBODYGJE-UHFFFAOYSA-N
• LogP: 4.14 at 20℃

Description and Uses

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.

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

Safety

• Symbol(GHS): 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)