Neodymium Hydroxide, Neodymium (III) Hydroxide, 16469-17-3

Neodymium Hydroxide, Neodymium (III) Hydroxide, 16469-17-3

🧪 NEODYMIUM HYDROXIDE

1️⃣ Physical and Chemical Properties

• Chemical Name: Neodymium(III) Hydroxide

• Chemical Formula: Nd(OH)₃

• CAS Number: 16469-17-3

• EC Number: 240-514-4

• Molar Mass: 195.27 g/mol

• Appearance: Pale pink-white crystalline powder

• Solubility: Insoluble in water, soluble in acids

• Density: ~4.2 g/cm³

• Stability: Stable in dry conditions, non-hygroscopic

• Crystal Structure: Hexagonal

• Hazards: GHS H315 (skin irritation), H319 (eye irritation), H335 (respiratory irritation)

2️⃣ Applications

• NdFeB magnet precursor: Converts to Nd₂O₃ via thermal decomposition

• Laser crystals: Used in Nd:YAG systems

• Rare earth separation: Hydroxide precipitation and purification

• Laboratory reagent: Spectroscopic analysis

• Organic synthesis: Acid-soluble neodymium source

• Ceramic additives: Refractive index modifier

3️⃣ Synonyms, CAS, EC, and Codes

4️⃣ Alternatives / Substitutes

• Neodymium Carbonate (Nd₂(CO₃)₃): Precursor for Nd₂O₃

• Neodymium Nitrate (Nd(NO₃)₃): Soluble neodymium source

• Praseodymium Hydroxide (Pr(OH)₃): Similar optical and synthesis roles

• Zirconium Hydroxide: Alternative in ceramics and coatings

5️⃣ Sectoral Compatibility Table

6️⃣ Common Names

• Neodymium hydroxide salt

• Pale pink hydroxide powder

• NdFeB precursor

• Laser hydroxide additive

7️⃣ Production

• Source Material: Reaction of neodymium nitrate with ammonia solution

• Process: Precipitation → Filtration → Drying

• Available Grades: Technical and high-purity

• Main Producer Countries: China, India, USA

• Commercial Purity Grades: 99% to 99.999%