| One of the oldest uses for praseodymium is in the manufacture of misch metal, a pyrophoric metal used to make lighter flints and tracer bullets. |
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| The Sichuan ore has more lanthanum, less praseodymium and neodymium, and about the same amount of cerium as the Bayan Obo deposit. |
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| When mixed with certain materials, the salts of praseodymium impart an intense yellow colour to glass. |
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| No extensive applications have been attributed to praseodymium or its salts. |
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| The glass industry uses praseodymium to produce objects such as welder's goggles. |
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| By using such exotic materials as yttrium orthosilicate crystals and praseodymium ions it trapped photons in bunches of as many as 500 at a time. |
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| Didymium itself, meanwhile, was revealed as a phantom, a mixture of two new elements that Karl Auer in Austria discovered in 1885 and called neodymium and praseodymium. |
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| Also, it is a component of the carbon arc lights used in the motion picture industry. Occasionally, praseodymium may be found as a component in permanent magnets. |
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| Use as a luminophor in plasma systems of a compound based on an yttrium, lanthanum, gadolinium or lutecium phosphate doped with at least one rare earth chosen from the group comprising terbium, praseodymium and cerium. |
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| The low concentrations of cerium and praseodymium in both clays, especially in the Xunwu clay, compared with the normal rare-earth distribution in the other minerals, is also remarkable. |
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| Process for the oxidation of hydrogen chloride with oxygen in the presence of a salt melt, characterized in that the salt melt comprises promotors from the group consisting of salts of cerium, praseodymium and neodymium. |
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| The Bayan Obo deposit is slightly richer in praseodymium and neodymium than the Mountain Pass bastnasite is, primarily at the expense of the lanthanum content, which is 10 percent greater in the Mountain Pass ore. |
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| Praseodymium is used in the manufacture of some lasers as well as electronic and thermoelectric components. |
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