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It's dark powder, insoluble in water and soluble in mineral acids.

It mainly used for building ceramics and ceramics, mixed with ceramic glaze made of colored glaze, also available separately as underglaze pigments, pigments made of light yellow, pure tone and elegant; used in the manufacture of permanent magnets. Using cheap metal instead of pure praseodymium neodymium magnet neodymium metal, its antioxidant properties and mechanical properties are obviously improved, can be processed into various shapes of magnets. It is widely used in various electronic devices and motors. Join the Y zeolite cracking catalyst in the preparation of oil PR nd enrichment in the form, can improve the catalytic activity, selectivity and stability; abrasive for polishing; also used in optical fields.