Chemical News and Journal of Industrial Science, Volumes 55-56Chemical news office., 1887 - Chemistry |
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acetic acetic ether action alkaline alumina ammonia ammonium amyl alcohol analysis antimony apparatus aqueous atomic weight bands barium boiling boric acid bromide calcium carbonic acid cent Chemical Notices Chemistry chemists chloride chromic acid cobalt colour compound containing copper crystallisation crystals decomposed decomposition determination didymium dilute dissolved distilled ether ethylic evaporated examined experiments extract filter filtrate flask formed gives grms heat hydrate hydrochloric acid hydrogen ignited insoluble iron liquid lithium magnetic manganese matter means mercury metals method mineral mixed mixture nickel nitrate nitric acid nitrogen Notices from Foreign obtained oxalic oxalic acid oxide oxygen paper phosphorescence phosphoric platinum potash potassium precipitate prepared present Prof pure quantity reaction residue salt samarium samples separation silver soda sodium soluble solution spectrum steel substance sugar sulphate sulphide sulphuric acid temperature tion tube vanadic W. H. Perkin washed wire yttrium zinc
Popular passages
Page 193 - Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is (d).
Page 25 - Committees for the several Sections before the beginning of the Meeting. It has therefore become necessary, in order to give an opportunity to the Committees of doing justice to the several Communications, that each Author should prepare an Abstract of his Memoir, of a length suitable...
Page 63 - Potassium sulphide removes all mercury from solution and so prevents the formation of mercuro-ammonium compounds which are not completely decomposed by soda solution. The addition of zinc gives rise to an evolution of hydrogen and prevents violent bumping. Previous to use the reagents should be tested by a blank experiment with sugar, which will partially reduce any nitrates that are present which might otherwise escape notice.
Page 56 - To the concentrated solution of the chlorides amyl alcohol is added and heat is applied, gently at first, to avoid danger of bumping, until the water disappearing from solution and the point of ebullition rising and becoming constant for some minutes at a temperature which is approximately that at which the alcohol boils by itself, the chlorides of sodium and potassium are deposited and lithium chloride is dehydrated and taken into solution. At this stage in...
Page 46 - I then put several gallons of normal milk in perfectly clean bottles with glass stoppers and allowed these to stand in my work room. From time to time a bottle was opened and the test for tyrotoxicon was made. These tests were followed by negative results, until about three months after the experiment was begun. I then succeeded in getting the poison from one of the bottles. The method for testing for it was as follows : The coagulated milk was filtered through heavy Swedish filter paper.
Page 52 - This condition continuing, after three days the animal was placed under ether and its abdominal organs examined. We certainly expected to find marked inflammation of the stomach. But we really did find the stomach and small intestines filled with a frothy, serous fluid, such as had formed the vomited matter, and the mucous membrane very white and soft. There was not the slightest redness anywhere. The liver and other abdominal organs seemed to be normal.
Page 25 - Abstracts. If it should be inconvenient to the Author that his Paper should be read on any particular days, he is requested to send information thereof to the SECRETARIES in a separate note.
Page 52 - Keep the mixture in a warm place for several days, or until a portion heated to 40° C. deposits no yellow precipitate of ammonium phospho-molybdate. Decant the solution from any sediment, and preserve in glass-stoppered vessels.
Page 52 - All were thirsty after the vomiting subsided, and called for cold water, which was allowed in small quantities, with no bad results. After getting out no one of the victims was able to be in the hot sun for several days, and even yet (about ten days after the poisoning) the heat affects myself. I attended twelve persons, besides being sick myself, and all were affected in pretty much the same way. Several complain yet of inability to retain food on the stomach without distressing them. The man who...
Page 52 - I analyze it, as some 18 persons had been seriously affected by eating of it. Dr. Baker also sent some of the vanilla which had been used as flavoring. It was thought that the poison would be found in the vanilla, because some lemon ice cream furnished at the same gathering had not affected those who ate of it.