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POTASSIUM FLAME TEST (KCl)
Lilac Flame Shows Presence Of Potassium (Alkali metal)
Potassium compound is dissociated by flame into gaseous atoms, not ions. The atoms of the element are raised to excited state by high temperature of flame. Excess energy from the atom is emitted as light of a characteristic wavelength.
Copyright:© 1983 Chip Clark - Fundamental Photographs
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