Platinum is a natural white precious metal. As early as 700 BC, platinum has been shining brilliantly in the history of human civilization. In the 2000-year history of human use of platinum, it has always been considered as one of the most precious metals.
In mineral classification, platinum group minerals belong to natural platinum subgroup, including natural elemental minerals such as iridium, rhodium, palladium and platinum. Platinum group minerals are all equiaxed, with few single crystals and occasionally cubic or octahedral fine crystals.
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The biggest use of platinum is as a catalyst for chemical reactions, usually platinum black. /kloc-at the beginning of the 0 th century, chemists began to use platinum powder to catalyze the ignition reaction of hydrogen.
At present, platinum is widely used in catalytic converters of automobiles, so that unburned hydrocarbons with low concentration in exhaust gas are completely burned, and carbon dioxide and water vapor are produced.
In petroleum industry, platinum can be used to catalyze several different reactions, especially the catalytic reforming of naphtha to produce high octane gasoline. Platinum dioxide is a catalyst for hydrogenation, especially for the production of vegetable oil. Platinum metal can catalyze the decomposition of hydrogen peroxide into water and oxygen.
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