Europium Carbonate Hydrate, 86546-99-8

🧪 EUROPIUM(III) CARBONATE HYDRATE

1️⃣ Physical and Chemical Properties

• Chemical Name: Europium(III) Carbonate Hydrate

• Chemical Formula: Eu₂(CO₃)₃·xH₂O (hydrated form)

• CAS Number: 86546-99-8

• EC Number: Not widely listed

• Molecular Weight: ~546 g/mol (anhydrous basis; varies with hydration)

• Appearance: White crystalline powder

• Melting Point: Not well defined; decomposes to Eu₂O₃ upon heating

• Solubility: Insoluble in water; soluble in acids

• Stability: Stable at room temperature

• Density: ~4.8 g/cm³

2️⃣ Detailed Applications

• Catalysis: Precursor for europium oxide (Eu₂O₃), used in catalytic and ceramic applications

• Optical glass and phosphors: Critical precursor for red‑emission phosphors (Eu³⁺ based), widely used in lighting and display technologies

• Electronics: Additive in semiconductors and vacuum systems

• Coating technologies: Thin film deposition and sputtering target precursor

• Nanotechnology: Source material for Eu₂O₃ nanoparticles

• Defense industry: Optical filters and laser systems

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

3️⃣ Synonyms, CAS, EC and Codes

4️⃣ Alternative / Substitute Products

• Europium Oxide (Eu₂O₃): Directly used in phosphors and optics

• Europium Hydroxide (Eu(OH)₃): Alternative precursor for Eu₂O₃

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

• Terbium Carbonate (Tb₂(CO₃)₃): Alternative in phosphor and optical applications

5️⃣ Sectoral Compliance Table

6️⃣ Common Names

• Europium carbonate

• White carbonate powder

• Phosphor additive

• Europium salt

7️⃣ Production

• Starting material: Europium‑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 Eu₂O₃ catalysts

• Phosphor production: Red‑emission phosphors for LEDs, lamps, and displays

• Electronic vacuum systems: Surface additive and protective layer

• Defense optics: Precision laser filtering systems

• Nanotechnology: Eu₂O₃ nanoparticle synthesis