12648-30-5

Basic information

• Product Name: Neodymium oxide
• Synonyms: NeodymiumoxideREObluepowder; Neodymium oxide; neodymium(+3) cation; oxygen(-2) anion; Neodymium(Ⅲ) oxide
• CAS NO: 12648-30-5
• Molecular Formula: MW:
• Molecular Weight: 0
• EINECS: 215-214-1
• Mol File: 12648-30-5.mol
• Article Data: 3

Chemical Properties

• Melting Point: 2270℃
• Appearance: /
• Water Solubility: insoluble
• CAS DataBase Reference: Neodymium oxide(CAS DataBase Reference)
• NIST Chemistry Reference: Neodymium oxide(12648-30-5)
• EPA Substance Registry System: Neodymium oxide(12648-30-5)

Safety Data

• Safety Statements: S24/25:
• Hazardous Substances Data: 12648-30-5(Hazardous Substances Data)

Usage

General Description

Neodymium oxide, also known as neodymium sesquioxide, is a naturally occurring compound made up of neodymium and oxygen atoms in a 2:3 ratio. It is a pale purple, powdery solid that is insoluble in water and most acids. Neodymium oxide is commonly used in the production of neodymium magnets, which are used in a variety of applications such as computer hard drives, headphones, and electric motors. It is also used in the glass industry as a colorant, and in the production of catalysts and ceramics. Neodymium oxide is known for its strong magnetic properties and is a key component in the production of high-performance magnets.

InChI:InChI=1/2Nd.3O/rNd2O3/c3-1-5-2-4

Upstream product

• 80937-33-3 oxygen 
• 10024-97-2 dinitrogen monoxide 

Downstream Products

• 16454-60-7 neodymium(III) nitrate 

Relevant articles and documents

SYNTHESIS OF RARE EARTH MONOXIDES.

The standard Gibbs energy changes for the formulation of an ionic or metallic monoxide from rare earth metal and sesquioxide have been calculated. Under high pressures ionic ytterbium monoxide and lighter rare earth metallic monoxides should be obtained, which is confirmed by experiments in a belt-type apparatus in the range 15-80 kbar and 500-1200 degree C. For Ln equals La, Ce, Pr, Nd, Sm, a face-centered cubic compound is obtained from each reaction. The cell parameters are respectively 5. 144, 5. 089, 5. 031, 4. 994, and 4. 943 plus or minus 0. 005 A. The compounds appear golden yellow with a metallic luster. From chemical analysis and cell parameter consideration it is concluded that these compounds are the rare earth monoxides. For Ln equals Gd, Dy, Tm, no reaction is observed at 50 kbar and 1000 degree C.

Temperature-Dependent Rate Constants for the Reactions of Gas-Phase Lanthanides with O2

The reactivity of the gas-phase lanthanide atoms Ln (Ln = La-Yb with the exception of Pm) with O2 is reported. Lanthanide atoms were produced by the photodissociation of [Ln(TMHD)3] and detected by laser-induced fluorescence. For all the lanthanides studied with the exception of Yb, the reaction mechanism is bimolecular abstraction of an oxygen atom. The bimolecular rate constants (in molecule-1 cm3 s-1) are described in Arrhenius form by k[Ce(1G4)] = (3.0 ± 0.4) × 10-10 exp(-3.4 ± 1.3 kJ mol-1/RT); Pr(4I9/2), (3.1 ± 0.7) × 10-10 exp(-5.3 ± 1.5 kJ mol-1/RT); Nd(5I4), (3.6 ± 0.3) × 10-10 exp(-6.2 ± 0.4 kJ mol-1/RT); Sm(7F0), (2.4 ± 0.4) × 10-10 exp(-6.2 ± 1.5 kJ mol-1/RT); Eu(8S7/2), (1.7 ± 0.3) × 10-10 exp(-9.6 ± 0.7 kJ mol-1/RT); Gd(9D2), (2.7 ± 0.3) × 10-10 exp(-5.2 ± 0.8 kJ mol-1/RT); Tb(6H15/2), (3.5 ± 0.6) × 10-10 exp(-7.2 ± 0.8 kJ mol-1/RT); Dy(5I8), (2.8 ± 0.6) × 10-10 exp(-9.1 ± 0.9 kJ mol-1/RT); Ho(4I15/2), (2.4 ± 0.4) × 10-10 exp(-9.4 ± 0.8 kJ mol-1/RT); Er(3H6), (3.0 ± 0.8) × 10-10 exp(-10.6 ± 1.1 kJ mol-1/RT); Tm(2F7/2), (2.9 ± 0.2) × 10-10 exp(-11.1 ± 0.4 kJ mol-1/RT), where the uncertainties represent ±2σ. The reaction barriers are found to correlate to the energy required to promote an electron out of the 6s subshell. The reaction of Yb(1S0) with O2 reacts through a termolecular mechanism. The limiting low-pressure third-order rate constants are described in Arrhenius form by k0[Yb(1S0)] = (2.0 ± 1.3) × 10-28 exp(-9.5 ± 2.8 kJ mol-1/RT) molecule-2 cm6 s-1.