Nickel(II) carbonate based on Nd3+4f3 electronic configuration and sharp light absorption characteristics, it has excellent magnetic and thermal stability, and is a key precursor for the preparation of neodymium-iron-boron permanent magnets, laser crystals and special glasses, and its purple appearance facilitates quality control during the production process.
Chemical properties
- Solubility: Slightly soluble in water ( solubility at 25℃ ≈ 0.005 g/100mL ), soluble in inorganic acids ( dissolution rate in 1M HNO3>8g/min )
- Thermal behavior: The DSC shows double endothermic peaks (dehydration peak at 210 ℃, decomposition peak at 480 ℃).
- Optical properties: characteristic absorption peaks (575nm, 740nm, 802nm)
- Magnetic properties: Room temperature magnetic susceptibility χ ≈ 3.2 × 10-3emu/g (1T field strength)
Application fields
Magnetic materials
- NdFeB magnets: Sintered NdFeB permanent magnet precursors ( maximum energy product > 50 MGOe )
- Magnetic refrigeration materials: preparation of Nd2O3based low-temperature magnetic refrigeration working fluid
Optical materials
- Laser crystals: Nd:YAG laser raw material (1064nm emission)
- Filter glass: preparation of special glass containing neodymium (absorbing yellow light at 580nm)
Catalysis field
- Rubber additives: rare earth components of catalysts for natural rubber
- Petroleum cracking: FCC catalyst modification additives
Save Notes
- Moisture-proof packaging: Aluminum foil bag vacuum sealed (water vapor permeability < 0.05 g/m²·day)
- Storage conditions: temperature 10-30℃, humidity <40% RH, away from light
- Compatibility: Do not store with strong oxidizing agents, acids.
