Everything about Strontium Carbonate totally explained
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Strontium carbonate (SrCO
3) is the carbonate salt of strontium that has the appearance of a white or grey powder. It occurs in nature as the mineral
strontianite.
Chemical properties
Strontium carbonate is a white, odorless, tasteless powder. Its chemical makeup is: C 8.14% O 32.51% Sr 59.35%. Being a
carbonate, it's a weak base and therefore is reactive with acids. It is otherwise stable and safe to work with. It is practically insoluble in water (1 part in 100,000). The
solubility is increased significantly if the water is saturated with
CO2, to 1 part in 1,000. It is soluble in dilute acids.
Preparation
Other than the natural occurrence as a mineral, strontium carbonate is prepared synthetically in one of two manners. First of which is from naturally occurring
celestine also known as
strontium sulfate (SrSO
4) or by using soluble
strontium salts by the reaction in solution with a soluble carbonate salt (usually sodium or ammonium carbonates). For example if sodium carbonate was used in solution with
strontium nitrate:
Sr(NO
3)
2 (aq) + Na
2CO
3 (aq) → SrCO
3 (s) + 2 NaNO
3 (aq).
Uses
The most common use is as an inexpensive
colorant in
fireworks. Strontium and its salts emit a brilliant red color in flame. Unlike other strontium salts, the carbonate salt is generally preferred because of its cost and the fact that it isn't
hygroscopic. Its ability to neutralize acid is also very helpful in pyrotechnics. Another similar application is in
road flares.
Strontium carbonate is used for electronic applications. It is used for manufacturing CTV to absorb electrons resulting from the
cathode.
It it used in the preparation of
iridescent glass, luminous paints, strontium oxide or strontium salts and in refining sugar.
It is also used in the manufacturing of strontium
ferrites for
permanent magnets which are used in
loud speakers and door magnets.
Because of its status as a weak
Lewis base, strontium carbonate can be used to produce many different strontium compounds by simple use of the corresponding acid.
Further Information
Get more info on 'Strontium Carbonate'.
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