American journal of pharmacy . hydrobromic acid and evaporatingthe liquid; by combining equal volumes of ammoniacal andhydrobromic acid gases, or by treating bromine with ammo-nia. The decomposition of bromine by ammonia is attendedwith a considerable evolution of caloric; nitrogen isdisengaged,whilst bromine unites with the hydrogen, and combines withthe undcromposcd ammonia, to form an hydrohromate. It issolid, white, but on exposure to air it becomes yellow, andseems to be transformed into a hydrohromate by yielding aportion of its hydrogen to the oxygon of thr atmosphere. i
American journal of pharmacy . hydrobromic acid and evaporatingthe liquid; by combining equal volumes of ammoniacal andhydrobromic acid gases, or by treating bromine with ammo-nia. The decomposition of bromine by ammonia is attendedwith a considerable evolution of caloric; nitrogen isdisengaged,whilst bromine unites with the hydrogen, and combines withthe undcromposcd ammonia, to form an hydrohromate. It issolid, white, but on exposure to air it becomes yellow, andseems to be transformed into a hydrohromate by yielding aportion of its hydrogen to the oxygon of thr atmosphere. in long j)risms, covered witli smaller ones, formingright angles with the former, and heat vaporizes it without de-composition on melting. Its taste is .sharj) and salt. It iscomposed of one aton» or 1 7 of ammonia and one atom or hydrobromic acid. Brmtifito of (immnnid is produced by mixing liriuid am-monia with liquid bromir. acid; it crystallizes in acicular crys- )5 g- 0 el ina-raas,isal c- a ts 5-r- Bromine and its Chemical Combinations. 105 tals and sometimes in grains. Its taste is sharp and cooling. It is converted by a gentle heat into bromine and nitrogen, which are disengaged, and into hydrobromate of ammonia. This compound may also be obtained by treating the bromate of baryta by the carbonate of ammonia. Its composition is 17 or one atom of ammonia, and or one atom of bro mic acid. [To be continued.] On Poll/gala Senega. The Seneka Snake Root. By DanielB. Smith. The Seneka Snake Root is a plant belonging to the Linnaeanclass Diadelphia, and order Octandria. It is the type of a na-tural order called Polygalcae, to which the Krameria Triandraalso belongs. The leaves of the polygale» have generally abitter astringent taste, which is much stronger in the roots,combined with an acrid and somewhat resinous flavour. Thisgenus is a beautiful example of the manner in which occasionalirregularities in structure are compensated by nature. Whenwe
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Keywords: ., bookcentury1800, bookdecade182, booksubjectpharmacy, bookyear1829
