Gadolinium Carbonate Hydrate, Gadolinium Tricarbonate Hydrate, 38245-36-2

🧪 GADOLINIUM(III) CARBONATE HYDRATE

1️⃣ Physical and Chemical Properties

• Chemical Name: Gadolinium(III) Carbonate Hydrate

• Chemical Formula: Gd₂(CO₃)₃·xH₂O (hydrated form)

• CAS Number: 38245-36-2

• EC Number: 227-583-6

• Molecular Weight: ~494.5 g/mol (anhydrous basis; varies with hydration)

• Appearance: White crystalline powder

• Melting Point: Not well defined; decomposes to Gd₂O₃ upon heating

• Solubility: Insoluble in water; soluble in acids

• Stability: Stable at room temperature

• Density: ~4.7 g/cm³

2️⃣ Detailed Applications

• Catalysis & Materials: Precursor for gadolinium oxide (Gd₂O₃), widely used in ceramics and catalysts

• Magnetic materials: Gd₂O₃ is important in magnetic and electronic applications; carbonate serves as precursor

• Optical glass: Used in specialty glass compositions for UV/IR transmission control

• Electronics: Additive in semiconductors and vacuum systems

• Coating technologies: Thin film deposition and sputtering target precursor

• Nanotechnology: Source material for Gd₂O₃ nanoparticles

• Chemical industry: Intermediate for rare‑earth oxides and hydroxides

3️⃣ Synonyms, CAS, EC and Codes

4️⃣ Alternative / Substitute Products

• Gadolinium Oxide (Gd₂O₃): Directly used in ceramics, magnets, and coatings

• Gadolinium Hydroxide (Gd(OH)₃): Alternative precursor for Gd₂O₃

• Lanthanide Carbonates (La₂(CO₃)₃, Ce₂(CO₃)₃, Pr₂(CO₃)₃): Comparable rare‑earth carbonate intermediates

• Dysprosium Carbonate (Dy₂(CO₃)₃): Alternative in magnetic and optical applications

5️⃣ Sectoral Compliance Table

6️⃣ Common Names

• Gadolinium carbonate

• White carbonate powder

• Magnetic additive

• Gadolinium salt

7️⃣ Production

• Starting material: Gadolinium‑containing rare‑earth ores or solutions

• Process: Carbonate precipitation → Filtration → Drying → Hydrate formation control

• Production grades: Technical and high‑purity grades

• Main producing countries: China, India, USA

• Commercial purity: 99% – 99.99%

8️⃣ Key Sectors and Processes

• Catalyst production: Precursor for Gd₂O₃ catalysts

• Magnetic material production: Contribution to high‑performance magnets

• Optical glass production: UV/IR transmission and refractive index control

• Electronic vacuum systems: Surface additive and protective layer

• Nanotechnology: Gd₂O₃ nanoparticle synthesis