COMPOUNDS OF POTASSIUM
COMPOUND
PREPARATION
PROPERTIES
Potassium oxide (K2O)
2KNO3+ 10K è 6K2O + N2
2KOH + 2K è 2K2O + H2
180OC
4K + O2 è 2K2O
reduced pressure
White hygroscopic substance
K2O + H2O
è 2KOH
Potassium hydroxide (KOH)
K2SO4 + Ba(OH)2 è BaSO4 + 2KOH
By the electrolysis of a solution of […]
POTASSIUM
Potassium is a soft silvery reactive element belonging to the group I of the periodic table. It is characterised by
Atomic number 19
Relative atomic mass 39.098
Relative density 0.87
Melting point 63.7OC
Boiling point 774OC
OCCURRENCE
Potassium basically occurs in minerals, as sylvine (KCl), Carnalite (KCl.MgCl2.6H2O) and salt petre (KNO3)
EXTRACTION
Potassium is usually prepared by the action of heat […]
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