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Dictionary

po•tas•si•um

Pronunciation: (pu-tas'ē-um), [key]
—n. Chem.
a silvery-white metallic element that oxidizes rapidly in the air and whose compounds are used as fertilizer and in special hard glasses. Symbol: K; at. wt.: 39.102; at. no.: 19; sp. gr.: 0.86 at 20°C.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

potassic

potassium acetate

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