Scandium acetate hydrate

Scandium acetate hydrate (CAS 304675-64-7), formally Sc(CH₃COO)₃·xH₂O, is a water-soluble rare earth salt; a white, odourless crystalline powder.

Where is Scandium acetate hydrate used?

• Electronics and solar PV: sol-gel precursor for scandium-stabilised zirconia (ScSZ) electrolyte layers in solid oxide fuel cells (SOFCs) and thin-film ionic conductors
• Wet-chemical deposition: ready solubility in aqueous and alcoholic media supports precise stoichiometric control over the Sc:Zr ratio
• Catalyst development and advanced materials research: building block for metal–organic frameworks (MOFs) and catalyst precursor
• Organic synthesis: acetate-derived Sc catalysts act as strong Lewis acids in selective acylation and ring-opening reactions for pharmaceutical intermediates
• Oil, gas and energy: scandium-containing catalysts derived from acetate precursors are evaluated in petroleum processing and environmental catalysis.

Good to know: The anhydrous form (CAS 3804-23-7) is a related compound and may be specified where residual moisture is a process constraint; confirm hydration state and moisture specification with the supplier. No Ph. Eur., USP, or food-grade monograph covers scandium acetate hydrate.

Commercial specifications

• Purity 99.9–99.99 % on a rare earth oxide basis (Sc₂O₃/TREO ≥ 99.9 %; TREO ≥ 99 %)
• Typical TREO content approximately 40–45 %
• Pack sizes from 5 g research quantities to 1 kg laboratory lots; larger quantities on request
• Certificate of analysis typically includes ICP-based trace rare earth impurity profiles