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PROOFS OF THE PROPERTIES OF BARYTES.

Experiment VII,

Barytes has a strong attraction for carlonic acid.

Let a solution of barytes be exposed to the air, it will soonacquire a pellicle, like lime-water, which after some time sinksto the bottom of the vessel.

Or, mix a little water impregnated with carbonic acid, witha solution of barytes, the mixture will immediately become tur-bid, and a precipitate will be obtained, which in both cases iscarbonate of barytes, originating from the union of the carbonicacid and the barytes.

Experiment VIII.

Barytes tinges the flame of turning alcohol yellow.

Put a little barytes into a silver spoon, pour over it strong ar-dent spirit, and set fire to it with a taper; the spirit will burnwith a yellow flame, which will be more perceptible by heatingthe mixture over a candle during its burning.

Experiment IX.

i

Barytes disengages sulphuric acid from all its combinations.

Dissolve a grain of sulphate of soda in a wine glass full of dis-tilled water, and add to it a few drops of a solution of barytes,white clouds will instantly be formed, and an insoluble preci-pitate will be gradually deposited.

Rationale. ..In this case the barytes unites to the sulphuricacid of the sulphate of soda, and forms with it sulphate of ba-rytes which is one of the most insoluble substances that chemis-