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The Chemical Gazette, Or, Journal of Practical Chemistry, in All ..., Volume 4
William Francis,Henry Croft
Volledige weergave - 1846
The Chemical Gazette, Or, Journal of Practical Chemistry, in All ..., Volume 1
William Francis,Henry Croft
Volledige weergave - 1843
The Chemical Gazette, Or, Journal of Practical Chemistry, in All ..., Volume 5
William Francis,Henry Croft
Volledige weergave - 1847
acetic acid action added aether alcoholic solution alkaline alkaloid ammonia analysis anhydrous appears arsenic atoms baryta boiling bromine carbonic acid cent centims Chem chloride chloride of sodium cold colour colourless composition compound concentrated contains converted cooling creosote crystalline crystals decomposed decomposition deposited didymium dilute dissolved distillation dried at 212 equivs evaporated excess experiments filtered fluid formed formula furnishes fused heated hydrate hydrochloric acid hydrogen insoluble iodide of aethyle iodine iron lead lime liquid manganese mass metallic milligrms mixed mixture muriatic acid neutral nitrate nitric acid nitrogen nitroharmidine obtained odour oxalic acid oxide oxygen peroxide phosphorus platinum portion potash potassium powder precipitate prepared produced protoxide pure reaction readily residue retort salt saponine separated silver small quantity soda soluble in water solution of potash starch stearic substance sulphate sulphuretted hydrogen sulphuric acid temperature tion tube urea urine volatile washed whilst yellow
Pagina 275 - The use of almond oil and of olive oil was not followed by any remedial effect, but from cocoa-nut oil results were obtained almost as decided as from the oil of the liver of the cod, and the author believes it may turn out to be a useful substitute. The oil employed was a pure cocoa oleine, obtained by pressure from crude cocoa-nut oil, as expressed in Ceylon and the Malabar coast from the Copperah or dried cocoa-nut kernel, and refined by being treated with an alkali and then repeatedly washed...
Pagina 215 - Several reactions, however, were mentioned as tending to show that there, is some truth in the law : — for instance, the solution of gold in hydrochloric acid upon the addition of nitrate of potash. The experiments of Bunsen on mixtures of carbonic oxide and hydrogen, exploded with a quantity of oxygen insufficient for complete combustion ; and those of Debus on the precipitation of mixed hydrates of lime and baryta by carbonic acid, were explained ; as also the remarkable fact noticed by both,...
Pagina 397 - Thus, it had been shown that a fattening animal might store up very considerably more fat than existed ready formed in its food ; and this produced fat was doubtless, in a great measure, due to the starchy and saccharine substances, which constitute so large a proportion of the non-nitrogenous constituents of our staple vegetable foods. It was these, too, which, in practice, served largely to meet the requirements of the respiratory function, which it had been shown, under ordinary circumstances,...
Pagina 337 - CCORDING to the results of recent researches in the constitution **• of salts and the methods thence introduced of explaining chemical reactions, it is equally correct to represent such a reaction as that of hydrochloric acid on hydrate of potash, as consisting in an exchange of hydrogen of the one for potassium of the other, or of chlorine in one for peroxide of hydrogen in the other. In Mr. Kay's researches as described in the following brief outline, this notion has obtained very striking illustration...
Pagina 276 - One portion was weighed and then dried in a water-oven, to determine the water. The other was macerated in cold water until it became colourless, then moderately dried and digested with ether and alcohol to remove fat, and finally dried completely and weighed as fibrine.
Pagina 238 - How curious if it should hereafter be found that murexide was indeed the source of all the varied hues of birds' plumage ! Still further, it is chiefly those animals which have but one means of exit for their excrements, and who produce large quantities of uric acid, that exhibit a display of colouring.
Pagina 219 - Fuchs's method is as follows^: — "Clean and washed quartz-sand is mixed with the smallest quantity of lime which will enable the plasterer to place it on the wall. The surface is then taken off with an iron scraper, in order to re> move the layer formed in contact with the atmosphere ; the wall being still moist during this operation.
Pagina 218 - ... stones with a solution of the water-glass. It is well known that the affinity of silica for alkali is so feeble that it may be separated from this base by the weakest acids, even by carbonic acid. According to the expectation of those who recommend the silification of stone, the carbonic acid of the atmosphere will set the silica free from the water-glass, and the silica, thus separated, will be deposited within the pores and around the particles of the stone. The points of contact of these particles...
Pagina 276 - Dutrochet when filled with a saline solution and immersed in water,) the passage of the salt outward is entirely by diffusion, and that a thin membrane does not sensibly impede that molecular process. The movement is confined to -the liquid salt particles, and does not influence the water holding them in solution, which is entirely passive : it requires no further explanation. The flow of water inwards, on the other hand, affects sensible masses of fluid, and is the only one of the movements which...
Pagina 133 - From this short statement of facts, the utility of charcoal-powder, as a means of preventing noxious effluvia from churchyards and from dead bodies in other situations, such as on board ship, is sufficiently evident. Covering a churchyard to the depth of from two to three inches with coarsely powdered charcoal, would effectually prevent any putrid exhalations ever finding their way into the atmosphere.