American Chemical Journal, Tom 17Ira Remsen, Charles August Rouillu I. Remsen., 1895 |
Spis treści
| 1 | |
| 33 | |
| 59 | |
| 68 | |
| 77 | |
| 91 | |
| 98 | |
| 113 | |
| 383 | |
| 390 | |
| 396 | |
| 397 | |
| 403 | |
| 421 | |
| 435 | |
| 443 | |
| 122 | |
| 139 | |
| 141 | |
| 154 | |
| 164 | |
| 185 | |
| 191 | |
| 199 | |
| 205 | |
| 213 | |
| 218 | |
| 220 | |
| 225 | |
| 251 | |
| 262 | |
| 265 | |
| 290 | |
| 297 | |
| 305 | |
| 316 | |
| 322 | |
| 347 | |
| 368 | |
| 449 | |
| 461 | |
| 470 | |
| 476 | |
| 507 | |
| 517 | |
| 532 | |
| 539 | |
| 570 | |
| 579 | |
| 592 | |
| 607 | |
| 612 | |
| 620 | |
| 629 | |
| 658 | |
| 692 | |
| 705 | |
| 729 | |
| 754 | |
| 801 | |
| 805 | |
| 807 | |
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetic acid action alkalies ammonia ammonium ammonium chloride amount analysis aniline anthracene argon atoms benzene boiling boiling-point bromine Calculated carbon cent Chem chemical chloric acid chloroform cold color colorless compound containing copper crystalline crystals cupric decomposed decomposition density deposited determined dilute dissolved distilled dried ester ether ethyl evaporated experiments filtered formation formed formula gram BaSO gram gave gram H,O gram substance gave H₂O heated hemiacetal hydrobromic acid hydrochloric acid hydrogen hydroxide insoluble iodide iodine Liebig liquid melting melting-point mercury metal method methyl alcohol mixture molecular molecule needles nitrate nitric acid nitrogen obtained orthosulphobenzoic acid oxide oxygen phenol phosphorus platinum potash potassium potassium cyanide precipitate prepared present pure reaction readily recrystallization residue salt saponification separated small quantity sodic sodium solu soluble solution solvent sulphate sulphide sulphuric acid temperature tion treated tube washed water-bath weight yellow yield yttrium
Popularne fragmenty
Strona 245 - It will be remembered that, from the velocity of sound in a gas, the ratio of specific heat at constant pressure to that at constant volume...
Strona 608 - Like the corresponding methyl compound the dichlordiethoxyquinone diethylhemiacetal has acid properties forming with sodic hydrate a sodium salt. It shows toward sodic hydrate a stability in marked contrast to its susceptibility to the action of dilute acids, as it is necessary to boil it with a strong solution of sodic hydrate in order to saponify it to chloranilic acid. The sodium salt of the diethylhemiacetal is white and crystalline, readily soluble in water, slightly soluble in alcohol, and...
Strona 232 - ... the rest, which would refuse to undergo that change. The foregoing experiments indeed in some measure decided this point, as much the greatest part of the air let up into the tube lost its elasticity; yet as some remained unabsorbed it did not appear for certain whether that was of the same nature as the rest or not. For this purpose I diminished a similar mixture of dephlogisticated and...
Strona 231 - ... the new constituent of the atmosphere, and we, therefore, turned our attention in the first instance to the consideration of methods more strictly chemical. And here the question forced itself upon us as to what really was the evidence in favour of the prevalent doctrine that the inert residue from air after withdrawal of oxygen, water, and carbonic anhydride, is all of one kind.
Strona 232 - I therefore made an experiment to determine whether the whole of a given portion of the phlogisticated air of the atmosphere could be reduced to nitrous acid, or whether there was not a part of a different nature from the rest, which would refuse to undergo that change.
Strona 237 - The excess being larger than before is doubtless due to the greater efficiency of the atmolysing apparatus. It should be mentioned that the above recorded experiments include all that have been tried, and the conclusion seems inevitable that "atmospheric nitrogen" is a mixture, and not a simple body. It was hoped that the concentration of the heavier constituent would be sufficient to facilitate its preparation in a pure state by the use of prepared air in substitution for ordinary air in the oxygen...
Strona 230 - The simplest explanation in many respects was to admit the existence of a second ingredient in air from which oxygen, moisture, and carbonic anhydride had already been removed.
Strona 270 - Synthesis of Weighed Quantities of Water from Weighed Quantities of Hydrogen and of Oxygen : EDWARD W.
Strona 230 - N, into detached atoms. In order to test this suggestion both kinds of gas were submitted to the action of the silent electric discharge, with the result that both retained their weights unaltered. This was discouraging, and a further experiment pointed still more markedly in the negative direction. The chemical behaviour of...
Strona 232 - 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.