12060-08-1

Basic information

• Product Name: Scandium oxide
• Synonyms: Scandium(III) oxide, REacton(R), 99.9% (REO);Scandium Oxide, tablets;Scandium(III) oxide, REacton, 99.9% (REO);Scandium(III) oxide, REacton, 99.99% (REO);Scandium (III) oxide, 99,999% (REO);Scandium oxide, 99.9% (REO);Scandium(III) oxide,99.9%;Scandium(III) oxide, REacton, 99.998% (metals basis), REM 50ppm max
• CAS NO: 12060-08-1
• Molecular Formula: O3Sc2
• Molecular Weight: 137.91
• EINECS: 235-042-0
• Product Categories: ScandiumMetal and Ceramic Science;Catalysis and Inorganic Chemistry;Chemical Synthesis;Oxides;Scandium;metal oxide;Inorganics
• Mol File: 12060-08-1.mol
• Article Data: 0

Chemical Properties

• Melting Point: 1000 °C
• Appearance: White/powder
• Density: 8.35 g/mL at 25 °C(lit.)
• Refractive Index: 1.964
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Water Solubility: insoluble
• Merck: 14,8392
• CAS DataBase Reference: Scandium oxide(CAS DataBase Reference)
• NIST Chemistry Reference: Scandium oxide(12060-08-1)
• EPA Substance Registry System: Scandium oxide(12060-08-1)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 12060-08-1(Hazardous Substances Data)

Usage

Description

Scandium oxide, with the chemical formula Sc2O3, is a fine white powder or sintered pieces of 3-12mm in size. It is a high melting white solid known for its resistance to heat and thermal shock, making it suitable for various high-temperature applications.

Uses

Used in Optical Coating Industry:
Scandium oxide is used as an evaporation material of 99.99% purity to produce a fairly hard and stable coating. This coating is useful for antireflection coating on semiconductors with a high index.
Used in Catalyst Industry:
Scandium oxide serves as a catalyst in various chemical reactions due to its unique properties.
Used in Electronic Ceramics Industry:
Scandium oxide is utilized in the production of electronic ceramics, taking advantage of its heat resistance and thermal shock properties.
Used in Laser Industry:
Scandium oxide finds application in the laser industry, where its properties contribute to the performance of laser systems.
Used in High-Intensity Discharge Lamps:
Scandium oxide is used annually in the manufacturing of high-intensity discharge lamps, benefiting from its high-temperature stability.
Used in High-Temperature Systems:
Due to its resistance to heat and thermal shock, scandium oxide is employed in high-temperature systems.
Used in Glass Composition:
Scandium oxide is used in the composition of glass, leveraging its properties to enhance the final product.
Used in the Preparation of Scandium Fluoride:
Scandium oxide is used to prepare scandium fluoride (ScF3), which serves as an electrolyte in the production of scandium metal.
Used in Vacuum Deposition Applications:
Scandium oxide is suitable for vacuum deposition applications, where its high purity (99.0 to 99.99 wt.% Sc) is essential for creating smooth surfaces with an AFM RMS roughness of 0.5 to 0.8 nm.
Used as a Starting Material for Other Scandium Compounds:
Scandium oxide is used as a starting material for the preparation of various other scandium compounds, showcasing its versatility in different industries.

Preparation

Scandium Oxide, SC2O3: It is obtained readily by heating the salts such as scandium carbonate and scandium nitrate.Sc2(CO3)3-Heat->Sc2O3+3CO24Sc(NO3)3-->2Sc2O3+12NO2+3O2Scandium oxide is a white powder. It is more basic than aluminium oxide but less basic than calcium oxide. It absorbs carbon dioxide from the air.It has the MnO3 structure.The crystal structure of scandium oxide is Bixbyite , which is an FCC array of scandium atoms with oxygen occupying 44 of the tetrahedral sites.

InChI:InChI=1/3O.2Sc/rO3Sc2/c1-4-3-5-2