Lanthanum oxide powder Raw Materials CAS 1312-81-8

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Uses and synthesis of Lanthanum oxide powder

Lanthanum oxide powder is the oxide of lanthanum (III), white powder at room temperature, relative density 6.51(15/4℃), melting point 2307℃, boiling point 4200℃.Lanthanum oxide CAS 1312-81-8 is insoluble in cold water, in hot water it becomes lanthanum hydroxide, it is soluble in dilute inorganic acid to form lanthanum salt of corresponding acid, insoluble in acetone.Lanthanum oxide Raw Materials co-melt with sodium hydroxide to form sodium tetralanthate. Lanthanum oxide Raw Materials Co-melt with sodium hydroxide to form sodium tetralanthanate. Absorbs carbon dioxide from the air and turns into lanthanum carbonate.

Applications / Functions of Lanthanum oxide powder

• Lanthanum oxide powder is mainly used in the manufacture of precision optical glass and optical fibres. Lanthanum oxide CAS 1312-81-8 is also used as raw material for lanthanum boride and catalyst for oil separation and refining.
• Lanthanum oxide Raw Materials Used as analytical reagent, raw material of optical glass and refractory material.
• Lanthanum oxide CAS 1312-81-8 is mainly used in the manufacture of cameras, microscopes, various optical glass components and optical fibres, can improve the refractive properties.

Physicochemical Property of Lanthanum oxide powder

White rhombohedral crystal system or amorphous powder. Soluble in acid, ethanol, ammonium chloride, insoluble in water, ketone.

Production methodprocess of Lanthanum oxide powder

The raw material of extraction method is the rare earth nitrate solution after removing cerium, containing about LaO350%, CeO2 trace, Pr6O116%~7%, Nd2O330%. Formulated into ΣRxOy320 ~ 330g / L of nitric acid rare earth solution, the use of neutral phosphine extractant methylphosphonic acid dimethylheptyl ester (P350), P350 - paraffin system by 35 ~ 38 level of extraction and separation, so that the lanthanum and the separation of other rare earths, lanthanum-containing extracted residue by the ammonia and neutralisation, precipitation of oxalic acid, and then by filtration, burning, the production of Lanthanum oxide powder.

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