Principal uses of strontium compounds are in pyrotechnics, for the brilliant reds in fireworks and warning flares and in greases.
Strontium concentrations in soil may also be increased by human activities, such as the disposal of coal ash and incinerator ash, and industrial wastes.
The anhydrous chloride is formed by heating strontium or its monoxide in chlorine, or by heating the hydrated chloride in a current of hydrochloric acid gas.
Strontium nitrate, Sr(NOa)2, is obtained by dissolving the carbonate in dilute nitric acid.
Strontium carbonate, SrCO3, found in the mineral kingdom as sttontianite, is formed when a solution of a carbonate is added to one of a strontium salt.
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