Gallium oxide , 99.999%metalsbasis , 12024-21-4

Synonym(s):
Gallium trioxide

CAS NO.：12024-21-4

Empirical Formula: Ga2O3

Molecular Weight: 187.44

MDL number: MFCD00011020

EINECS: 234-691-7

PRODUCT Properties

• Melting point: 1740 °C
• Density: 6.44 g/mL at 25 °C
• refractive index: 1.92
• storage temp.: Sealed in dry,Room Temperature
• solubility: soluble in hot acid solutions
• form: Powder or Lump
• Specific Gravity: 6.44
• color: White
• Water Solubility: Soluble in acids. Insoluble in water
• Crystal Structure: Corundum type
• crystal system: Three sides
• Merck: 14,4346
• Space group: R3c
• Lattice constant:
  • a/nm: 0.49825
  • b/nm: 0.49825
  • c/nm: 1.3433
  • α/o: 90
  • β/o: 90
  • γ/o: 120
  • V/nm3: 0.2888
• Stability: Stable. Incompatible with magnesium.
• InChIKey: QZQVBEXLDFYHSR-UHFFFAOYSA-N
• CAS DataBase Reference: 12024-21-4(CAS DataBase Reference)
• EPA Substance Registry System: Gallium trioxide (12024-21-4)

Description and Uses

Gallium(III) oxide (Ga2O3) is a wide band gap semiconductor that belongs to a family of transparent semiconducting oxides (TSO). It can form different polymorphs such as α-,β-, γ-, δ-, and ε-. Polycrystalline and nanocrystalline Ga2O3 can be prepared using several methods such as chemical vapor deposition, thermal vaporization, and sublimation, molecular beam epitaxy, melt growth, etc. It is widely used as a functional material in various applications including optoelectronics, chemical sensors, catalysis, semiconductor devices, field-effect transistors, and many others.

Gallium(III) oxide is used in vacuum deposition. It is useful for making semiconductor devices, gallium-alumina catalyst, gas sensors, luminescent phosphors and dielectric coatings of solar cells. It shows potential for developing deep-ultraviolet TCOs (Transparent Conductive Oxides) and transparent electrodes for ultraviolet optoelectronic devices. Recent studies report that gallium oxide can be a strong contender for power electronic devices for example, in ultrahigh-voltage power switching applications. Films made of gallium oxide have gained commercial interest owing to their gas sensitive characteristics, and glasses made with gallium oxide are the preferred optical materials for use in advanced technologies.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P271-P280
• Safety Statements: 24/25
• WGK Germany: 2
• RTECS: LW9650000
• TSCA: Yes
• HS Code: 28259090
• Toxicity: mammal (species unspecified),LDLo,intraperitoneal,10gm/kg (10000mg/kg),BEHAVIORAL: EXCITEMENTLUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSIONBEHAVIORAL: ATAXIA,Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 31(6), Pg. 58, 1987.