Reaction with Dilute Acids
Potassium reacts with dilute acids explosively and experiments
with these substances should never be attempted.
Potassium Hydroxide Reaction
Potassium hydroxide (KOH), commonly called caustic potash,
is an important compound of Potassium which is used to make
detergents and soaps. Potassium hydroxide dissolves readily in
water, and gives off considerable heat and forms a strongly
alkaline, caustic solution.
and Water Reaction
When small pieces of Potassium
are added to water this results in a hissing sound and the
substance burns with a lilac flame. Hydrogen gas is given out in
the reaction and potassium hydroxide is formed.
Potassium + Water —>
Potassium hydroxide + Hydrogen
Potassium Nitrate Reaction), also known as saltpeter,
is an important compound of Potassium which is used in the
production of fertilizers, matches, gunpowder and pyrotechnics.
Potassium nitrate is slightly soluble in cold water and very
soluble in hot water. It is prepared by the reaction of
potassium chloride with sodium nitrate. When it is heated
potassium nitrate decomposes and releases oxygen.
Potassium nitrate (KNO3
Potassium Chloride Reaction
Potassium chloride (KCl) is an important Potassium compound
which is used in the production of fertilizers and chemicals and
also as a salt substitute. Potassium chloride is soluble in
water, alcohol, and alkalies and insoluble in alcohol. Potassium
reacts with dilute hydrochloric acid to give potassium chloride
and hydrogen gas.
Potassium + Dilute
hydrochloric acid —> Potassium chloride + Hydrogen
small pieces of Potassium
in air results in the substance melting without any flame being
seen and turning instantly into a mixture of potassium peroxide
and potassium super oxide. Larger pieces of potassium burn with
a lilac flame.
Some examples of a chemical reaction include most commonly burning, fermentation,
tarnishing and rusting. There are several different types of Chemical reaction
which have been detailed below:
- Substitution reactions
- Combustion reactions
- Combination reactions
- Decomposition reactions
article above for additional facts and information providing
the different types of reactions, examples of reaction
and the Rate of a Chemical Reaction.