Journal of the Chemical Society, Volume 70, Part 2The Society., 1896 - Chemistry "Titles of chemical papers in British and foreign journals" included in Quarterly journal, v. 1-12. |
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Common terms and phrases
absorption Abstr acetic acid action added alcohol alkali Amer ammonia ammonium amount analysis anhydride argon arsenic barium barium chloride boiling bromine calcium carbonic anhydride cent Chem chloric acid colour compounds Compt concentrated containing copper crystallises crystals cyanide decomposed decomposition determined dilute dissociation dissolved distilled Estimation ether evaporated excess experiments extract fermentation ferric filtered filtrate flask formed formula gases grams H₂O heated hydrochloric acid hydrogen chloride hydrogen peroxide hydroxide increase iodide iodine iron liquid magnesium manganese mercury metal method methylic mineral mixture molecular molecules nitrate nitric acid nitrogen obtained oxide oxidised oxygen peroxide phosphate phosphoric acid physikal platinum potash potassium potassium chloride precipitate present pressure proteïds reaction rend residue salt silver silver nitrate SiO2 small quantity sodium soil soluble substance sugar sulphate sulphide sulphuric acid temperature tion trace tube urine vapour volume weight whilst yields Zeit zinc
Popular passages
Page 101 - I let up some solution of liver of sulphur to absorb the dephlogisticated air, after which only a small bubble of air remained unabsorbed, which certainly was not more than -j-^ of the bulk of the phlogisticated air let up into the tube ; so that if there is any part of the phlogisticated air of our atmosphere which differs from the rest and cannot be reduced to nitrous acid, we may safely conclude that it is not more than T^ part of the whole.
Page 105 - Crookes's observations of the dual character of its spectrum ; against, because of Professor Olszewski's statement that it has a definite melting point, a definite boiling point, and a definite critical temperature and pressure ; and because on compressing the gas in presence of its liquid...
Page 102 - ... pipes connected in series. The three groups were then connected in parallel and placed in a large glass tube closed in such a way that a partial vacuum could be maintained in the space outside the pipes by a water pump. One end of the combination of pipes was open to the atmosphere; the other end was connected to a bottle aspirator, initially full of water and so arranged as to draw about 2 per cent of the air which entered the other end of the pipes. The gas collected was thus a very small proportion...
Page 106 - ... attempts to cause combination between mercury gas at 800° and other elements. As for the physical condition of argon, that of a gas, we possess no knowledge why carbon, with its low atomic weight, should be a solid, while nitrogen is a gas, except in so far as we ascribe molecular complexity to the former and comparative molecular simplicity to the latter. Argon, with its comparatively low density and its molecular simplicity, might well be expected to rank among the gases. And its inertness,...
Page 100 - ... chemical" nitrogen has been found to equal 1.2505. It is therefore seen that "chemical" nitrogen, derived from "atmospheric" nitrogen, without any exposure to red-hot copper, possesses about die usual density. Experiments were also made which had for their object to prove that the ammonia produced from the magnesium nitride is identical with ordinary ammonia and contains no other compound of a basic character. For this purpose, the ammonia was converted into ammonium chloride, and the percentage...
Page 264 - Brociner * also made experiments which show that 100 vols. of blood dissolve about 80 vols. of acetylene ; the solution shows no characteristic spectrum, and is reduced by ammonium hydrosulphide as readily as ordinary arterial blood. In a vacuum part of the acetylene is evolved at the ordinary temperature, and part at 60°. If the blood is allowed to putrefy the volume of acetylene given off at the ordinary temperature remains practically the same, but the quantity liberated at 60° decreases as...
Page 601 - MendelejefFs periodic law zirconium comes close to thorium, the properties of the carbides of these two elements differ greatly from each other. Preparation Of Alloys. — According to H. Moissan,* many alloys can be obtained by taking advantage of the ease with which metallic oxides are reduced by aluminium. The general method is to throw a mixture of aluminium filings and the oxide of the particular metal into melted aluminium. Part of the aluminium burns, and there is such an energetic development...
Page 104 - For compressible flow this becomes: where y is the ratio of the specific heat at constant pressure to that at constant volume...
Page 16 - ... electrical character with rising atomic weight in the separate series of the periodic system, and the second case corresponds with a passage from one series to the next. It therefore appears that the passage from one series to the next in the periodic system should take place through an element which is electrically indifferent. The valency of such an element would be zero, and therefore in this respect also it would represent a transitional stage in the passage from the univalent electronegative...
Page 106 - If argon be a single element, then there is reason to doubt whether the periodic classification of the elements is complete ; whether, in fact, elements may not exist which cannot be fitted among those of which it is composed. On the other hand, if argon be a mixture of two elements, they might find place in the eighth group, one after chlorine and one after bromine. Assuming 37 (the approximate mean between the atomic weights of chlorine and potassium) to be the atomic weight of the lighter element,...