Ammonia And Its Compounds Their Manufacture And Uses
The book Ammonia And Its Compounds Their Manufacture And Uses was written by author Camille Vincent Here you can read free online of Ammonia And Its Compounds Their Manufacture And Uses book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Ammonia And Its Compounds Their Manufacture And Uses a good or bad book?
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High and 0'3 to 0'35 m. In diameter. Fig. 28 shows the arrangement adopted. The pots, twenty in number, are arranged in two rows on the arch of a furnace, where they are exposed to the flames rising through the apertures 0, 0. The top of the furnace is formed by a cast-iron plate F, F, through holes in which the pots are introduced, and which confines the heat to the lower two-thirds of their height. On this plate lies a layer of sand, which 7 98 AMMONIA AND ITS COMPOUNDS can be heaped over the... pots when required. The pots, first coated with a clay lute, are dried in the subliming house ; they are then charged with crystallised ammonium chloride as dry as possible, set in the furnace and covered with sand. The heat is then raised slowly, to avoid cracking the pots. Steam is at first given off from the openings S, S, and when thick white vapours of sal ammoniac appear, an ordinary flower-pot p is inverted over each opening to condense them. The operation is carried on as in the English process : the sal ammoniac is deposited in the upper parts of the pots at A, A, and in the flower-pots p, p ; and gradually closes up the openings, so that towards the end of the operation, when the temperature has to be somewhat raised to give the product the requisite texture and trans- lucency, an internal pressure is caused in the pots.
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