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Platinum is paramagnetic, whereas nickel and iron are both ferromagnetic. These two impurities are thus removed by running an electromagnet over the mixture. Because platinum has a higher melting point than most other substances, many impurities can be burned or melted away without melting the platinum.
The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the ... 78 Pt platinum; use: 2041.4 K: 1768.3 °C: 3214.9 °F WEL: 2041.4 K:
78 Pt platinum; use: 4098 K: 3825 °C: 6917 °F WebEl: 4098 K: 3825 °C: 6917 °F CRC: 3825 °C: Lange: 3824 °C: Zhang et al. ... Melting points of the elements ...
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Also agrees with Celsius values from Section 4: Properties of the Elements and Inorganic Compounds, Melting, Boiling, Triple, and Critical Point Temperatures of the Elements Estimated accuracy for T c and P c is indicated by the number of digits.
The platinum-group metals [a] (PGMs) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). [1] The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum.
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Palladium has the appearance of a soft silver-white metal that resembles platinum. It is the least dense and has the lowest melting point of the platinum group metals. It is soft and ductile when annealed and is greatly increased in strength and hardness when cold-worked.