This salt is usually prepared from the sulphuret of strontium, obtained by decomposing sulphate of strontia with charcoal, by strong ignition of the mixed powders in a crucible.
By exposing strontia and its compounds upon platinum wire, or as a splinter with the platinum tongs, to the point of the blue flame, the external flame appears of an intense crimson color.
The carbonate and sulphate of strontia melt with soda upon platinum foil to a bead, which is milk-white when cold, but fused upon charcoal they are absorbed.
The hydrate ofstrontia has the same properties as the hydrate of baryta, except that it is less soluble in water.
Inflame the spirit, and if strontia is present, the flame is tinged of a red color.
In the presence of baryta, strontia can be detected by the following process: mix some of the substance under examination with some pure graphite and water, by grinding in an agate mortar.
The insoluble salts of strontia do not produce a very intense color.
If alcohol is poured over powdered strontia and inflamed, the flame appears purple or deep crimson, particularly if the fluid is stirred with a glass rod, and when the alcohol is nearly consumed.
Strontia and baryta will flow into the charcoal, but lime will not.
Strontia or its compounds produce with borax, or microcosmic salt, the same reactions as baryta.
The color produced by the sulphate of strontia is less intense.
Strontia and its compounds are analogous to the respective ones of baryta.
The carbonate of strontia fuses a little at a red heat, swells, and bubbles up like cauliflower.
In consequence of the decided red color which strontia communicates to flame, it is used by pyrotechnists for the purpose of making their "crimson fire.
Thus a beautiful rose or carmine coloured flame may be produced by muriate of strontia: this is prepared by dissolving carbonate of strontia in muriatic acid, and evaporating it to dryness.
Camphor gives to flame a blue colour; and nitrate of strontia (prepared the same as the muriate) a purple.
The decomposition of potash, soda, baryta, lime and strontia could not have been effected had he not had at his command the resources of a well-furnished laboratory.
This table tells us that the affinity of baryta for sulphuric acid is greater than that of strontia for the same acid, that of strontia greater than that of potash, and so on.
It also tells that potash will decompose a compound of sulphuric acid and soda, just as soda will decompose a compound of the same acid with lime, or strontia will decompose a compound with potash, etc.
Muriate of strontia is formed very readily, by dissolving the carbonate or sulphuret of strontia in muriatic acid, and evaporating the solution in order to obtain crystals.
Strontia differs from barytes in being infusible, much less soluble, of a different form, weaker in its affinities, and not poisonous.
The saline combinations of strontia were examined with particular attention by Dr.
When carbonate of strontia is mixed with charcoal powder, and exposed to a heat of 140° of Wedgwood's pyrometer, the carbonic acid will be expelled, and pure strontia remain.
Nitrate of strontia may be formed by dissolving carbonate of strontia, or the sulphuret obtained by decomposing the sulphate by charcoal, in nitric acid, filtering the solution, evaporating it, and suffering it to crystallize.
Muriate and nitrate of strontia will give a red or purple colour to the flame of alcohol.
The carbonate of strontia or strontianite, effervesces with acids, and burns with a purple flame.
If a piece of cloth be dipped in a solution of muriate, nitrate, or acetate of strontia, or in strontia water, and then immersed in alcohol, it will burn with a red flame.
Fourcroy recommends the muriate of strontia for fire-works.
Nicholson (Chemical Dictionary,) observes, that nitrate of strontia may be used in the art of pyrotechny.
The solution of strontiachanges vegetable blues to green.
I] Baryta andstrontia dissolve in alcohol, but only when they are anhydrous and the alcohol is absolute, which is not the case here.
Should a precipitate of sulphate of lime, sulphate of baryta or sulphate of strontia form, it is separated from the fluid and further examined.
If the solution is turbid, traces of baryta or strontia may still be present and should be removed by filtration.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "strontia" in a variety of sentences. We hope that you will now be able to make sentences using this word.
