Union Carbide is currently the only domestic supplier of the ultra-high purity semiconductor material increasingly required for defense applications.

CENTERFORSECURITYPOLICY: Center For Security Policy

Cutting agents weighing 40kg meant the gang could have turned out 53kg of high purity cocaine, the court heard.

BBC: Bedford drug-dealing gang jailed

And just 50 pounds of high purity uranium smaller than a soccer ball could destroy the downtown of all our capital cities and kill tens if not hundreds of thousands of individuals.

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The investigation showed how the Lincolnshire-based group, headed by Nicholas Howarth, 44, of Wing Drive, Boston and Leigh Upsall, 30, of Keel Drive, Kirton, originally sourced high purity cocaine from Hakki Salih, 50, of Maroons Way, London, from December 2010.

BBC: Eighteen men jailed over drugs ring

The energy stored in xylose splits water molecules, yielding high-purity hydrogen that can be directly utilized by proton-exchange membrane fuel cells.

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The in-ear Nokia Purity Stereo Headset by Monster, providing high-performance in-ear style and the on-ear Nokia Purity HD Stereo Headset by Monster for the best mobile audio experience.

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In the first few days or weeks, there is a feeling of purity, a kind of a high which comes from having disciplined oneself and from the sense of reward that is soon coming.

BBC: Interactive Essay: Transcript

As for the rest, high-grade ecstasy is making a comeback (use fell in recent years when the purity fell too), at a price, and there is concern about anabolic steroids.

ECONOMIST: Drug use and abuse