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Updated: May 13, 2025
A fungous growth occupied the external portion of the ear; the man suffered pain and discharge from the ear, and had also great difficulty in closing his right eyelid. Morrison mentions an alcoholic patient of forty who, on June 6, 1833, had nitric acid poured in her right ear. There were no headache, febrile symptoms, stupor, or vertigo. Debility alone was present.
Though this is a very weak acid, its solvent action is very important. But, in addition to the various organic acids and carbonic acid, we have also to consider the formation of nitric acid in connection with the decomposition of organic manures. Nitric acid is one of the strongest known, and in solvent power it is excelled by no single acid.
Iodide of potassium in solution gives a bright yellow precipitate with lead salts; a bright scarlet with corrosive sublimate; and a blue colour with sulphuric or nitric acid and starch. =Phosphorus= is usually found in small, waxy-looking cylinders, which are kept in water to prevent oxidation.
It is insoluble in nitric acid, but readily soluble in ammonia; it fuses without decomposition, forming, when cold, a tough, horny mass, and is reduced by hydrogen and by fusion with carbonate of soda, or with resin. Chloride of Bromine. Chloride of Iodine. Dissolve half an ounce of carbonate of potassa in water, and neutralize with muriatic acid.
Now cotton, combined with cold nitric acid, become transformed into a substance eminently insoluble, combustible, and explosive. It was first discovered in 1832, by Braconnot, a French chemist, who called it xyloidine.
It is only necessary to heat the nitric acid on the sugar; the sugar dissolves, and there is a violent effervescence, which must be moderated by immersion in cold water: when the mixture cools, crystals of oxalic acid form in abundance, which may be purified by a second crystallization.
The skin of the iron must, in all cases, be broken where a rust joint is to be made; and, if the place be greasy, the surface must be well rubbed over with nitric acid, and then washed with water, till no grease remains. The oil about engines has a tendency to damage rust joints by recovering the oxide.
This oil is acidulated by mixing with it one tenth of pure nitric acid, leaving it for at least 48 hours, occasionally agitating the flask. The oil, which is acidulated, and which then powerfully reddens litmus paper, is decanted. It is also a little colored, but remains very limpid. Solution of Chloride of Gold and Platinum.
Upon heating with nitric acid it partly dissolves, and the remainder becomes flaky and gelatinous. Apopholite, although quite rare, now may be bought from the men, or at least one of the engineers of Shaft No. 2's elevator, and generally at low terms. Phrenite. This mineral is quite abundant in Shafts No. 1 and 2, in very small masses, incrustations, and even in small crystals.
The box, which was a hospital medical chest, was filled with drugs of all kinds. Bathurst put a stick of caustic into a small vial, and half filled another, which had a glass stopper, with nitric acid, filled it up with water, and tried the effect of rubbing a few drops on his arm. "That is strong enough for anything," he said, with a slight exclamation at the sharp pain.
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