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Bromide of Ammonium

For strong solution of sesquicarbonate of ammothe preparation of bromide of ammonium, nia; collect the precipitate, drain and press it, bromine is added very gradually to diluted wash it with a little rectified spirit, and dry it. ammonia. The ensuing reaction produces Dissolve in boiling water, and crystallize by much heat, which may cause ammonia and slow evaporation. bromine to volatilize with the escaping nitrogen. The combination, therefore, is effected in a Wolffe's apparatus, which will condense and retain both perfectly. The evaporation mixture as long as acid vapors are evolved. of the fluid is also best done in an iron retort connected with a stoneware receiver, in which ammonia and some bromide of ammonium are condensed.