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Gadolinium Sulfate (Gd₂(SO₄)₃·8H₂O) is a white crystalline compound valued for its role as a high-purity precursor in rare-earth processing and homogeneous catalysis. With a CAS number of 10361-85-0 and a molecular weight of 792.64 g/mol (hydrated form), this compound offers purity levels of 99.9%-99.99% (4N), featuring moderate solubility in water (18 g/100 mL at 20°C) and predictable thermal decomposition behavior. Its stable trivalent gadolinium ions (Gd³+) make it ideal for synthesizing magnetic materials, catalysts, and optical coatings.
1. Selective Precipitation: Enables efficient separation of Gd³+ ions from mixed rare-earth solutions, achieving purity boosts of 15-20% in solvent extraction processes.
2. Controlled Thermal Decomposition: Releases water of crystallization at 100-200°C and decomposes to Gd₂O₃ above 800°C, yielding a fine oxide powder with high surface area (20-30 m²/g).
3. Low Heavy Metal Content: Stringent purification ensures Fe, Cu, and Ni levels <10 ppm, meeting the strict requirements for use in electronic-grade materials.
4. Flowable Particle Morphology: Uniform micron-scale particles (D50=10-15 μm) with low agglomeration, facilitating automated dosing in continuous manufacturing lines.
5. Lewis Acid Catalysis: Facilitates esterification and transesterification reactions with high turnover rates, reducing the need for corrosive mineral acids in organic synthesis.
• Catalyst Production: Used in the synthesis of heterogeneous catalysts for CO₂ hydrogenation, leveraging Gd³+ ion basicity to activate carbonyl groups in biomass conversion.
• Magnetic Material Precursors: Converted to Gd₂O₃ for doping into ferrite matrices, enhancing the magnetic anisotropy of inductors for 5G communication devices.
• Optical Coatings: Combined with yttrium sulfate to create transparent conductive oxides, improving anti-reflective properties in the 1-3 μm wavelength range for thermal imaging systems.
• Research Reagents: Serves as a model compound in thermogravimetric analysis (TGA) and as a dopant in glass-ceramic composites for optical sensing applications.
• Water Treatment: Supports for activated carbon in industrial wastewater systems, adsorbing heavy metal ions through electrostatic interactions with sulfate groups.
Q: Is the anhydrous form of Gadolinium Sulfate available?
A: Yes, we offer both hydrated (octahydrate) and anhydrous forms; the anhydrous version is recommended for high-temperature sintering to avoid moisture-related defects.
Q: What is the optimal temperature for complete decomposition into Gd₂O₃?
A: Heating at 850-900°C under air for 2 hours ensures full conversion, with residual sulfur content <0.05%.
Q: Can it be used in electroplating baths for gadolinium coatings?
A: Yes, its water-soluble nature allows integration into electrolyte formulations, enabling the deposition of corrosion-resistant Gd-Ni alloy coatings for aerospace fasteners.
Q: Does this product comply with REACH and RoHS regulations?
A: Absolutely, all batches undergo rigorous testing for restricted substances, with certificates of compliance available for downstream electronic and medical applications.
Q: What packaging options are suitable for moisture-sensitive applications?
A: We provide vacuum-sealed polyethylene bags inside aluminum foil-lined cartons, ensuring moisture ingress <0.1% during international shipping.
Gadolinium Sulfate (Gd₂(SO₄)₃·8H₂O) is a white crystalline compound valued for its role as a high-purity precursor in rare-earth processing and homogeneous catalysis. With a CAS number of 10361-85-0 and a molecular weight of 792.64 g/mol (hydrated form), this compound offers purity levels of 99.9%-99.99% (4N), featuring moderate solubility in water (18 g/100 mL at 20°C) and predictable thermal decomposition behavior. Its stable trivalent gadolinium ions (Gd³+) make it ideal for synthesizing magnetic materials, catalysts, and optical coatings.
1. Selective Precipitation: Enables efficient separation of Gd³+ ions from mixed rare-earth solutions, achieving purity boosts of 15-20% in solvent extraction processes.
2. Controlled Thermal Decomposition: Releases water of crystallization at 100-200°C and decomposes to Gd₂O₃ above 800°C, yielding a fine oxide powder with high surface area (20-30 m²/g).
3. Low Heavy Metal Content: Stringent purification ensures Fe, Cu, and Ni levels <10 ppm, meeting the strict requirements for use in electronic-grade materials.
4. Flowable Particle Morphology: Uniform micron-scale particles (D50=10-15 μm) with low agglomeration, facilitating automated dosing in continuous manufacturing lines.
5. Lewis Acid Catalysis: Facilitates esterification and transesterification reactions with high turnover rates, reducing the need for corrosive mineral acids in organic synthesis.
• Catalyst Production: Used in the synthesis of heterogeneous catalysts for CO₂ hydrogenation, leveraging Gd³+ ion basicity to activate carbonyl groups in biomass conversion.
• Magnetic Material Precursors: Converted to Gd₂O₃ for doping into ferrite matrices, enhancing the magnetic anisotropy of inductors for 5G communication devices.
• Optical Coatings: Combined with yttrium sulfate to create transparent conductive oxides, improving anti-reflective properties in the 1-3 μm wavelength range for thermal imaging systems.
• Research Reagents: Serves as a model compound in thermogravimetric analysis (TGA) and as a dopant in glass-ceramic composites for optical sensing applications.
• Water Treatment: Supports for activated carbon in industrial wastewater systems, adsorbing heavy metal ions through electrostatic interactions with sulfate groups.
Q: Is the anhydrous form of Gadolinium Sulfate available?
A: Yes, we offer both hydrated (octahydrate) and anhydrous forms; the anhydrous version is recommended for high-temperature sintering to avoid moisture-related defects.
Q: What is the optimal temperature for complete decomposition into Gd₂O₃?
A: Heating at 850-900°C under air for 2 hours ensures full conversion, with residual sulfur content <0.05%.
Q: Can it be used in electroplating baths for gadolinium coatings?
A: Yes, its water-soluble nature allows integration into electrolyte formulations, enabling the deposition of corrosion-resistant Gd-Ni alloy coatings for aerospace fasteners.
Q: Does this product comply with REACH and RoHS regulations?
A: Absolutely, all batches undergo rigorous testing for restricted substances, with certificates of compliance available for downstream electronic and medical applications.
Q: What packaging options are suitable for moisture-sensitive applications?
A: We provide vacuum-sealed polyethylene bags inside aluminum foil-lined cartons, ensuring moisture ingress <0.1% during international shipping.
