Description
Specifications Table
Product Name – Europium(III) sulfate octahydrate, REacton™, 99.99% (REO) Quantity/Pack Size – 25g, 5g Form – Crystalline powder Grade – REacton™ (99.99% REO) Application – Luminescent materials, catalysis, spectroscopic standards, rare earth research
Product Overview
Europium(III) sulfate octahydrate from REacton™ is a high-purity rare earth compound with a minimum 99.99% rare earth oxide (REO) content, ensuring exceptional performance in demanding laboratory applications. This crystalline powder exhibits excellent water solubility, making it ideal for preparing homogeneous solutions in spectroscopic analysis, luminescent material synthesis, and catalytic research. The octahydrate form provides enhanced stability during storage and handling, reducing the risk of hygroscopic degradation common in anhydrous salts. Its well-defined stoichiometry and minimal trace metal impurities (typically <10 ppm for most contaminants) ensure reproducible results in quantitative analyses. The compound’s strong red luminescence under UV excitation makes it a critical reagent in fluorescence-based assays and phosphors for display technologies. Unlike lower-grade alternatives, this REacton™ product undergoes rigorous multi-stage purification, including zone refining and fractional crystallization, to eliminate residual solvents and metallic contaminants. The material’s consistent particle size distribution (D50 ~10-20 µm) further enhances its reactivity in solid-state synthesis. For researchers requiring precise doping levels in inorganic matrices, this europium sulfate offers superior batch-to-batch consistency compared to technical-grade alternatives.
FAQs
1. What is the difference between this REacton™ grade and technical-grade europium sulfate?
REacton™ grade undergoes additional purification steps including ion exchange chromatography and vacuum drying to achieve 99.99% REO purity, while technical grades typically contain 95-98% REO with higher levels of sodium, calcium, and iron impurities that can interfere with sensitive applications.
2. Can this compound be used directly in aqueous solutions without further purification?
The product is pre-purified and can be dissolved directly in deionized water for most applications, though researchers may opt for additional filtration (0.22 µm) if working with nanoparticle synthesis or ultra-sensitive spectroscopic techniques where particulate matter could interfere.
3. How does the octahydrate form compare to anhydrous europium sulfate for storage stability?
The octahydrate form is significantly more stable under normal laboratory conditions (20-25°C, 40-60% RH) as it doesn’t absorb additional moisture from the air, unlike anhydrous versions which can cake or form lumps due to hydration over time.
4. What are the primary decomposition products when this compound is heated?
Thermal decomposition begins around 300°C with loss of water molecules, followed by formation of europium oxysulfate (Eu2O2SO4) at higher temperatures (600-800°C), and ultimately europium oxide (Eu2O3) above 1000°C in oxidative atmospheres.
5. Is this product compatible with standard glass laboratory ware?
Yes, the compound can be safely handled in borosilicate glass containers (Type I or III) as it doesn’t react with silica at room temperature, though prolonged storage of concentrated solutions may require PTFE-lined caps to prevent potential etching from trace acidity.
