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Rare-earth sulfates consist of ammonium cerium sulfate, ceric sulfate, cerous sulfate and lanthanum sulfate hydrate. They are used in redox reactions, analytical chemistry, catalysis, rare-earth separation and specialty chemical synthesis. Since cerium-based materials exist in multiple oxidation states, purchasers shall explicitly verify cerium oxidation state, active component, water-of-crystallisation, solubility and stability. Unambiguous chemical names, specification parameters, test data and packaging recommendations help distinguish product grades and avoid procurement risks originating from differing oxidation or hydration states.
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Lutetium(III) Oxide
Lutetium(III) Oxide (Lu2O3), also known as lutecia, is a white solid and a cubic compound of lutetium. It is a highly insoluble thermally stable Lutetium source, which has a cubic crystal structure and available in white powder form. This rare earth metal oxide exhibits favorable physical properties, such as a high melting point (around 2400°C), phase stability, mechanical strength, hardness, thermal conductivity, and low thermal expansion. It is suitable for specialty glasses, optic and ceramic applications. It is also used as the important raw materials for laser crystals.