1. Only gold, silver, copper and the platinum metals occur in nature in larger amounts. 2. Ignition ( strong heating ) converts it to platinum metal : 3. The Pt-Pt distance in Krogmann's salt is only 0.1 angstroms longer than in platinum metal . 4. The platinum metals have many useful catalytic properties. 5. Every such missile has gold, silver, platinum metals . 6. Gibbs's research was mainly in analytical and inorganic chemistry, especially the cobalt-amines, platinum metals , and complex acids. 7. Norilsk Nickel, the world's second-largest nickel producer and a major producer of platinum metals , rose to $ 9.48 from $ 8.21. 8. A separate plate is then made with a thin layer of the iodide electrolyte spread over a conductive sheet, typically platinum metal . 9. Ruthenium, like the other platinum group metals, is obtained commercially as a by-product from nickel, and copper, and platinum metals ore processing. 10. As the platinum metal precursor is reduced to neutral platinum metal ( Pt 0 ), the reaction mixture becomes coalescence of the nanoparticles.
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