The object of using the iodine is to form a compound with bromine that is not so volatile as the bromine itself.

No matter how little iodine is combined with the bromine, the vapors possess their relative proportion; hence, only enough iodine to prevent "flaring," or as it is often termed a "scum-coating," is used.

The iodine should be thoroughly combined with the lime, which will take about one or two days.

Should add bromine the same as in bromide of lime, until the compound assumes a light red color.
No.

2 is prepared in the same manner as No.