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Definition of platinum metals in English: platinum metalsplural noun Chemistry The six metals platinum, palladium, ruthenium, osmium, rhodium, and iridium, which have similar properties and tend to occur together in nature. Example sentencesExamples - The catalytic converter mixes these gases with air and then passes them over a catalyst made of rhodium and platinum metals.
- The platinum metals tend to occur together in nature and are relatively difficult to separate from each other.
- Tennant was studying a new mineral that contained a number of platinum metals and discovered a black powder that other chemists had also seen, but had not analyzed.
- The rising gold price is still having a knock-on effect on other commodities - silver rose to an 18-year high on Friday, while platinum metals were also rising.
- He had perfected the powder method of preparing malleable platinum and established the platinum metals industry.
Definition of platinum metals in US English: platinum metalsplural noun Chemistry The six metals platinum, palladium, ruthenium, osmium, rhodium, and iridium, which have similar properties and tend to occur together in nature. Example sentencesExamples - The catalytic converter mixes these gases with air and then passes them over a catalyst made of rhodium and platinum metals.
- The platinum metals tend to occur together in nature and are relatively difficult to separate from each other.
- Tennant was studying a new mineral that contained a number of platinum metals and discovered a black powder that other chemists had also seen, but had not analyzed.
- The rising gold price is still having a knock-on effect on other commodities - silver rose to an 18-year high on Friday, while platinum metals were also rising.
- He had perfected the powder method of preparing malleable platinum and established the platinum metals industry.
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