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What is the history of isolating yttrium?

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In 1794, Johan Gadolin isolated impure yttria from the mineral gadolinite. In 1843, C. G. Mosander isolated pure yttria as well as two impure fractions that he called erbia and terbia. The metal was first isolated in 1828 by Friedrich Wšhler.

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Similar questions: Can you isolate yttrium from mineral gadolinite? What was yttrium isolated from? When was yttrium isolated from the mineral gadolinite? Who isolated yttrium first? [ Hide these questions ]

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