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The symbol for the element platinum.
The symbol for platinum.
A soft, ductile, malleable, silver-white metallic element that usually occurs with osmium, iridium, palladium, or nickel. It has a high melting point and does not corrode in air. Platinum is used as a catalyst and in making jewelry, electrical contacts, and dental crowns. Atomic number 78; atomic weight 195.08; melting point 1,772°C; boiling point 3,827°C; specific gravity 21.45; valence 2, 3, 4. See Periodic Table.
Abbreviation of pint
unit of capacity in the British Imperial and U.S. Customary systems of measurement. In the British system the units for dry measure and liquid measure are identical; the single British pint is equal to 34.68 cubic inches (568.26 cubic cm) or one-eighth gallon. In the United States the unit for dry measure is slightly different from that for liquid measure; a U.S. dry pint is 33.6 cubic inches (550.6 cubic cm), while a U.S. liquid pint is 28.9 cubic inches (473.2 cubic cm). In each system, two cups make a pint, and two pints equal a quart.