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Scandium Sulfate (Sc₂(SO₄)₃) is a white crystalline powder with high solubility in water, serving as a key source of Sc³+ ions for chemical synthesis and industrial catalysis. With a CAS number of 10343-06-3 and a molecular weight of 422.03 g/mol, this compound offers purity levels of 99.9%-99.99% (4N), featuring a melting point of 1000°C (decomposes) and excellent thermal stability in acidic environments. Its low toxicity and ability to act as a Lewis acid make it indispensable in organic synthesis and material precursor applications.
1. High Solubility: Readily dissolves in water (14.4 g/100 mL at 20°C) and dilute acids, enabling precise control over Sc³+ ion concentration in solution-based processes.
2. Lewis Acid Activity: Strong electrophilic properties catalyze esterification, alkylation, and Diels-Alder reactions, reducing the need for corrosive mineral acids.
3. Thermal Decomposition Control: Decomposes to Sc₂O₃ at high temperatures, serving as a precursor for scandium oxide nanoparticles and thin films via sol-gel or hydrothermal methods.
4. Low Impurity Profile: Strict control of metal impurities like iron, sodium, and potassium (<50ppm) ensures high selectivity in catalytic reactions and material purity.
5. Hygroscopic Stability: Compared to other rare-earth sulfates, Sc₂(SO₄)₃ has lower hygroscopicity, maintaining flowability in moderate humidity environments.
• Organic Catalysis: Acts as a reusable catalyst in the synthesis of pharmaceuticals (e.g., anti-inflammatory drugs) and fine chemicals, promoting green chemistry by reducing waste.
• Material Precursor: Used in the production of scandium-doped zirconia (ScSZ) electrolytes for solid oxide fuel cells (SOFCs), enhancing ionic conductivity at lower temperatures.
• Aluminum Alloys: Added as a micronized powder to Al-Mg alloys to refine grain structure, improving strength and fatigue resistance in aerospace components (e.g., aircraft wings).
• Electroplating: Forms stable complexes with Sc³+ ions in electrolyte baths, enabling the deposition of scandium coatings for corrosion-resistant automotive parts.
• Research Reagents: Serves as a standard reference material in analytical chemistry and a dopant in semiconductor thin films for optoelectronic devices.
Q: What is the optimal pH for dissolving Scandium Sulfate?
A: It dissolves best in acidic solutions (pH 2-4) to prevent hydrolysis; adding a small amount of sulfuric acid can enhance solubility and stabilize Sc³+ ions.
Q: Can Scandium Sulfate be used in high-temperature sintering processes?
A: Yes, during sintering, it decomposes into Sc₂O₃, which acts as a grain growth inhibitor in ceramic matrices, improving densification without compromising thermal conductivity.
Q: Is this product safe for handling in laboratory settings?
A: Yes, it is classified as non-toxic, but we recommend wearing gloves and goggles to prevent direct contact with eyes and skin.
Q: What is the difference between anhydrous and hydrated Scandium Sulfate?
A: Our product is anhydrous (Sc₂(SO₄)₃), while hydrated forms (e.g., octahydrate) may contain bound water, which can affect stoichiometry in precise syntheses.
Q: Can Scandium Sulfate be used in agricultural applications?
A: While not a primary use, its low toxicity allows for research into plant nutrient supplements, though industrial-scale applications are still in development.
Scandium Sulfate (Sc₂(SO₄)₃) is a white crystalline powder with high solubility in water, serving as a key source of Sc³+ ions for chemical synthesis and industrial catalysis. With a CAS number of 10343-06-3 and a molecular weight of 422.03 g/mol, this compound offers purity levels of 99.9%-99.99% (4N), featuring a melting point of 1000°C (decomposes) and excellent thermal stability in acidic environments. Its low toxicity and ability to act as a Lewis acid make it indispensable in organic synthesis and material precursor applications.
1. High Solubility: Readily dissolves in water (14.4 g/100 mL at 20°C) and dilute acids, enabling precise control over Sc³+ ion concentration in solution-based processes.
2. Lewis Acid Activity: Strong electrophilic properties catalyze esterification, alkylation, and Diels-Alder reactions, reducing the need for corrosive mineral acids.
3. Thermal Decomposition Control: Decomposes to Sc₂O₃ at high temperatures, serving as a precursor for scandium oxide nanoparticles and thin films via sol-gel or hydrothermal methods.
4. Low Impurity Profile: Strict control of metal impurities like iron, sodium, and potassium (<50ppm) ensures high selectivity in catalytic reactions and material purity.
5. Hygroscopic Stability: Compared to other rare-earth sulfates, Sc₂(SO₄)₃ has lower hygroscopicity, maintaining flowability in moderate humidity environments.
• Organic Catalysis: Acts as a reusable catalyst in the synthesis of pharmaceuticals (e.g., anti-inflammatory drugs) and fine chemicals, promoting green chemistry by reducing waste.
• Material Precursor: Used in the production of scandium-doped zirconia (ScSZ) electrolytes for solid oxide fuel cells (SOFCs), enhancing ionic conductivity at lower temperatures.
• Aluminum Alloys: Added as a micronized powder to Al-Mg alloys to refine grain structure, improving strength and fatigue resistance in aerospace components (e.g., aircraft wings).
• Electroplating: Forms stable complexes with Sc³+ ions in electrolyte baths, enabling the deposition of scandium coatings for corrosion-resistant automotive parts.
• Research Reagents: Serves as a standard reference material in analytical chemistry and a dopant in semiconductor thin films for optoelectronic devices.
Q: What is the optimal pH for dissolving Scandium Sulfate?
A: It dissolves best in acidic solutions (pH 2-4) to prevent hydrolysis; adding a small amount of sulfuric acid can enhance solubility and stabilize Sc³+ ions.
Q: Can Scandium Sulfate be used in high-temperature sintering processes?
A: Yes, during sintering, it decomposes into Sc₂O₃, which acts as a grain growth inhibitor in ceramic matrices, improving densification without compromising thermal conductivity.
Q: Is this product safe for handling in laboratory settings?
A: Yes, it is classified as non-toxic, but we recommend wearing gloves and goggles to prevent direct contact with eyes and skin.
Q: What is the difference between anhydrous and hydrated Scandium Sulfate?
A: Our product is anhydrous (Sc₂(SO₄)₃), while hydrated forms (e.g., octahydrate) may contain bound water, which can affect stoichiometry in precise syntheses.
Q: Can Scandium Sulfate be used in agricultural applications?
A: While not a primary use, its low toxicity allows for research into plant nutrient supplements, though industrial-scale applications are still in development.
