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It required per 10,000 parts 0.236 oxygen as permanganate. A second portion was placed in a flask plugged with cotton wool, and exposed to sunlight for a week; it then required 0.200. A third portion after a week, but excluded from light, required 0.231. A fourth was boiled for five minutes, plugged, and then exposed to sunlight for a week; required 0.198.
Potassium permanganate oxidizes ferrous salts in cold, acid solution promptly and completely to the ferric condition, while in hot acid solution it also enters into a definite reaction with oxalic acid, by which the latter is oxidized to carbon dioxide and water.
Water solutions of boric acid, potassium permanganate and hydrogen peroxide are recommended. Liquid preparations are applied with pledgets of cotton, oil cans, or atomizers. Many recoveries can be obtained with careful treatment. It is usually most economical to kill the severely affected birds.
This percentage is determined by an indirect method, in which the manganese dioxide is reduced and dissolved by an excess of ferrous sulphate or oxalic acid in the presence of sulphuric acid, and the unused excess determined by titration with standard permanganate solution. The reaction involved is
Use some simple remedy like coal oil or permanganate of potash to cleanse the throat and nostrils. With coal oil, first wipe the eyes and bill with a clean cloth dipped in the coal oil, then inject with a sewing-machine oil can enough coal oil to open and thoroughly clean out the nostrils.
For washing purposes it must be treated with a few tablets of permanganate of potassium which colours it red. It is like bathing in blood. Since my journey from Katanga onward was through the heart of Africa, perhaps it may be worth while to tell briefly of the equipment required for such an expedition.
Quinine, C H N O , when carefully oxidized with chromic acid or potassium permanganate, yields a series of products. The alkaloid has been shown to be a tertiary base. Quinidine yields with chromic acid the same decomposition products as quinine.
Deduct this volume from the amount of permanganate solution used in the titration. From the data obtained, calculate the relation of the permanganate solution to the normal. The reaction involved is: 5Na C O + 2KMnO + 8H SO > 5Na SO + K SO + 2MnSO + 10CO + 8H O !Method A!
Cover the solution with a watch-glass; allow it to stand until cool, or preferably over night. Filter the solution through a layer of asbestos. In neutral solutions the reduction of the permanganate is less complete, and, under these conditions, two gram-molecular weights of KMnO will furnish only 48 grams of oxygen.
A medicine may be an emmenagogue without being an ecbolic. Permanganate of potassium and binoxide of manganese are valuable remedies for amenorrhoea, but will not produce abortion. The vegetable substances frequently used as abortives are savin and ergot. Leaves and tops of the plant yield an acrid oil having poisonous properties, and which has even produced death. Symptoms.
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