Journal of the Chemical Society, Том 49Chemical Society., 1886 "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Загальні терміни та фрази
acetic acid action added alcohol alkaline ammonia ammonium chloride analysis anhydride anhydrous appears barium benzene boiling point bromine cadmium cadmium iodide Calculated carbonic oxide cent chemical colour colourless compound contained copper crystals cyanuric acid cyanuric chloride decomposed decomposition denitrification density determinations dilute dissolved distilled dried ether ethylic evaporated excess experiments ferment filtered flask formation formed formula fractions gram gram H₂O heat of dissolution hydrocarbons hydrochloric acid hydrogen insoluble iodide iodine iron liquid mercuric chloride mercuric sodium sulphite mercurosic sulphite mercurous sulphate method mgrms mixture molecules nitrate nitric acid nitrogen numbers observed obtained ordinary organic matter oxidised oxygen oxysulphite peroxide phenol phosphorus pipitzahoic acid potash potassium precipitate prepared present pressure pure radicle reaction reduced residue Rochelle salt saturated separated silicon silver small quantity sodium sulphite soil soluble solution specimens steam sulphuric acid temperature tion tube vapour vapour-pressures volume water of crystallisation yellow yield
Популярні уривки
Сторінка 86 - ... volume of the vapour, the specific gravity of which would therefore be 28. Now this is but little removed from the actual specific gravity obtained by the preceding experiments ; and knowing that this vapour must contain, small portions of other substances in solution, there appears no reason to doubt that, if obtained pure, it would be found thus constituted.
Сторінка 195 - FRS, Lecturer on General Anatomy and Physiology in the Medical School of St. Bartholomew's Hospital, Professor of Bacteriology at the College of State Medicine, London.
Сторінка 96 - ... clear that half a volume or one equivalent of oxygen derived from the vapour of the water, had combined with one volume or equivalent of carbonic oxide, and formed one volume or equivalent of carbonic acid, leaving in place of the carbonic oxide with which it had combined, the one volume or equivalent of hydrogen with which it had been originally associated. Comparing the last experiment, viz. that of mixed carbonic acid and hydrogen with this, I was naturally struck with the curious reversal...
Сторінка 86 - ... other products from the condensed liquor, the next most definite to the bicarburet of hydrogen appears to be that which is most volatile. If a portion of the original liquid be warmed by the hand or otherwise, and the vapour which passes off be passed through a tube at 0°, very little uncondensed vapour will go on to the mercurial trough ; but there will be found after a time a portion of fluid in the tube, distinguished by the following properties. Though a liquid at 0°, it upon slight elevation...
Сторінка 37 - R' = R, or the ratio of the absolute temperatures is a constant at all pressures ; and where c is greater or less than 0, its value may readily be determined either by calculation, or graphically by representing the (absolute) temperatures of one of the two bodies as ordinates, and the ratio of the absolute temperatures at pressures corresponding to the absolute temperatures of that body as abscissae. It is found that in all cases the points representing the relation of the ratio of the absolute...
Сторінка 112 - The presence of an inert gas, such as nitrogen, by diminishing the intensity of the reaction favours the formation of carbonic acid in preference to steam. When the hydrogen is less than double the oxygen the excess of oxygen cannot react with any of the three other gases present — carbonic oxide, carbonic acid, and steam — but has to wait until an equal volume of steam is reduced to hydrogen by the carbonic oxide. The excess of inert oxygen has the same effect as the inert nitrogen in favouring...
Сторінка 37 - If these amounts of heat be compared at different pressures, for any two bodies, then the ratio of the amount at the boiling-point under a pressure, p^, to the amount at another pressure...
Сторінка 87 - As the proportions of the elements in this vapour appear to be the same as in olefiantgas, it became interesting to ascertain whether chlorine had the same action upon it as on the latter body. Chlorine and the vapour were therefore mixed in an exhausted retort: rapid combination took place, much heat was evolved, and a liquor produced resembling hydrochloride of carbon, or the substance obtained by the same process from olefiant gas. It was transparent, colourless, and heavier than water. It had...
Сторінка 388 - The chemical changes in general produced by slow combustion appear worthy of investigation. A wire of platinum introduced under the usual circumstances into a mixture of prussic gas (cyanogen), and oxygen in excess became ignited to whiteness, and the yellow vapours of nitrous acid were observed in the mixture.
Сторінка 86 - Hence 100 cubic inches weigh nearly 57*44 grains. When cooled to 0° it condensed again ; and inclosed in this state in a tube of known capacity, and hermetically sealed up, the bulk of a given weight of the substance at common temperatures was ascertained. This compared with water gave the specific gravity of the liquid as 0.627 at 54°.