Open AccessThe decomposition of ammonia by heat.
Author(s) -
Edgar Philip Perman,
Gordon Atkinson,
William Ramsay
Publication year - 1905
Publication title -
proceedings of the royal society of london
Language(s) - English
Resource type - Journals
eISSN - 2053-9126
pISSN - 0370-1662
DOI - 10.1098/rspl.1904.0091
Subject(s) - ammonia , muffle furnace , decomposition , chemistry , materials science , metallurgy , inorganic chemistry , organic chemistry , catalysis , calcination
This subject has been already dealt with by Ramsay and Young, who heated ammonia in glass tubes at various temperatures, and found that decomposition began under the most favourable circumstances at a little below 500°, and that the amount decomposed depends on the extent of the heated surface of the solid with which the ammonia is in contact, on the nature of the surface, and on the time of exposure to heat. We have thought it desirable to extend our knowledge of the subject still further by investigating therate of decomposition at various temperatures. The ammonia was contained in porcelain vessels heated in a muffle furnace, and the decomposition was traced by reading the pressure on a mercury manometer, the sum of the volumes of the ammonia and products of decomposition being kept constant.