The Chemistry of Sulphuric Acid ManufactureSpon, 1873 - 81 páginas |
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20 feet 500 cubic feet acid and nitric acid gas action takes place alkali-manufacture amount of acid amount of action amount of arsenic amount of nitric amount of steam amount of sulphurous analyses arsenic trioxide arsenious acid bottom of chamber cent chamber crystals Chamber in Feet CHARING CROSS chemical chimney coke condensing surface condensing-towers Degrees of temperature end Proportional Experiment Fahr feet from bottom Feet from end feet from entrance flue leading form of chamber furnace Gay-Lussac tower glass grain greatest amount hydrochloric acid kilns lead chamber leaden Length of Chamber manufacture of sulphuric method employed mixed gases nitrate of soda nitric acid nitrous obtained oxygen pass percentage of acid Percentage of Nitric phuric acid Proportional of Chamber purification pyrites quantity represent the percentages Ruddy fumes second chamber sodium sulphate specific gravity Spence sulphide sulphuric acid manufacture Table temperature Fahrenheit vessel whilst yield of vitriol
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Página 69 - a considerable quantity of nitrous acid and nitric " oxide ; it is run back into the leaden trough leading " from the burners to the first chamber, where, by the " action of the sulphurous gas and steam, it is deprived " of its nitrous acid and nitric oxide.
Página 69 - a space is left in the chamber, about 4 feet in length, " to allow the gases again to mix freely, and then " another pile of glass similar to the first is formed, " and in this way the chamber is filled, the piles of " glass and mixing spaces occurring alternately at " equal distances apart. Steam is introduced into the " second chamber at the end next to the first chamber, " and in sufficient quantity to produce acid of from " 1-675 to 1-750 specific gravity in the farthest or last " division of...
Página 77 - Beaume (sp. gr., 1714 = 143° Twaddle), with the striking result, fully confirming the laboratory experiment, that a far smaller quantity of nitric acid was required for the same production of sulphuric acid. The author adds, that if, by accident, the strength of the acid in the aforesaid chamber should fall below the sp. gr. just alluded to, it can be easily brought up to that strength by the addition of acid of 66° Beaum6 (sp.