POTASSAE CARBONAS
\pˈɒtɐsˌiː kɑːbˈə͡ʊnəz], \pˈɒtɐsˌiː kɑːbˈəʊnəz], \p_ˈɒ_t_ɐ_s_ˌiː k_ɑː_b_ˈəʊ_n_ə_z]\
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This is not caustic, like the subcarbonate of potass, and hence, has been preferred to relieve acidity. (Potass. carbon. lbiv, Aquae destillat. Ox. Pass carbonic acid through the solution until it is saturated, and filter. Evaporate at a heat not exceeding 160, and dry the crystals on bibulous paper. Carbonic acid is obtained from marble by the addition of dilute sulphuric acid. - Ph. U. S.) It is used in forming the soda powders, as well as for its antacid properties. Distillers and brewers prepare this salt with great facility by suspending a solution of the purified carbonate of potassa in the fermenting tun. The alkaline salt is thus surrounded by an atmosphere of carbonic acid; and by absorbing it, it crystallizes into bicarbonate. The salt in powder is called sal aeratus. Its composition is between that of a carbonate and of a bicarbonate.
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P. subcarbonas-p. Carbonas e Lixivo Cinere, P. subcarbonas- p. Carbonas impurus, P. subcarbonas- p. Carbonas purus. Pure carbonate of potassa, see P. subcarbonas-p. Chloras, P. murias hyperoxygenatus-p. Chloruretum oxydatum, P. murias hyperoxygenatus.
By Robley Dunglison
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