A Treatise on Chemistry, Volume 2Macmillan and Company, limited, 1907 |
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Common terms and phrases
alcohol alkali alloy aluminium ammonia ammonium anhydrous anorg antimony aqueous atomic weight barium bismuth boiling bromide calcium carbon dioxide caustic potash caustic soda cent cerium Chem chemical Chim chloride colour colourless composition compound Compt containing converted cooling copper crystallises crystals cupric cuprous cyanide decomposed decomposition deliquescent deposited dilute dissolves electrolysis elements employed evaporated fluoride formed formula furnace fused glass gold heated hydrate hydrochloric acid hydrofluoric acid hydroxide ignited insoluble iodide iron Journ lead lime liquid lithium magnesium mass melts mercury metal mineral mixture molecules monoclinic nitrate nitric acid nitrogen obtained occurs oxide oxidised oxygen peroxide potassium potassium chloride powder precipitate prepared prisms pure reaction readily Rend rhombic rubidium silver small quantity sodium carbonate soluble in water solution specific gravity spectrum substance sulphate sulphide sulphuretted hydrogen sulphuric acid temperature thallium titanium vanadium vapour whilst yellow yields Zeit zinc
Popular passages
Page 311 - Under these circumstances a vivid action was soon observed to take place. The potash began to fuse at both its points of electrization. There was a violent effervescence at the upper surface; at the lower, or negative surface, there was no liberation of elastic fluid ; but small globules having a high metallic lustre, and being precisely similar in visible characters to quicksilver, appeared, some of which burnt with...
Page 88 - As he that taketh away a garment in cold weather, and as vinegar upon nitre, so is he that singeth songs to a heavy heart.
Page 46 - Without entering into details, I will give the conclusions I then arrived at in the very words I used : — 1. The elements, if arranged according to their atomic weights, exhibit an evident periodicity of properties. 2. Elements which are similar as regards their chemical properties have atomic weights which are either of nearly the same value (eg, platinum, iridium, osmium) or which increase regularly (eg, potassium, rubidium, cesium).
Page 46 - ... elements, in the order of their atomic weights, corresponds to their so-called valencies as well as, to some extent, to their distinctive chemical properties — as is apparent, among other series, in that of lithium, beryllium, barium, carbon, nitrogen, oxygen, and iron.
Page 139 - The strontia flame exhibits a great number of red rays well separated from each other by dark intervals, not to mention an orange and a very definite bright blue ray. The lithia exhibits one single red ray.
Page 139 - If this opinion should be correct, and applicable to the other definite rays, a glance at the prismatic spectrum of a flame may show it to contain substances which it would otherwise require a laborious chemical analysis to detect.
Page 311 - ... in a state of intense activity ; and a platina wire, communicating with the positive side, was brought in contact with the upper surface of the alkali.
Page 617 - They showed* that a burning surface of magnesium wire, which, seen from a point at the sea's level, has an apparent magnitude equal to that of the sun, effects on that point the same chemical action as the sun would do if shining from a cloudless sky at a height of 9° 53
Page 408 - DETRIMENTAL to the power of the battery : the copper plate is also covered with a coating of metallic copper, which is continually being deposited ; and so perfect is the sheet of copper thus formed, that, on being stripped off, it has the polish, and even a counterpart of every scratch of the plate on which it is deposited.
Page 169 - ... which we see in the solar spectrum ; and this supposition is rendered still less probable by the fact that these lines do not appreciably alter when the sun approaches the horizon. It does not, on the other hand, seem at all unlikely, owing to the high temperature which we must suppose the sun's atmosphere to possess, that such vapours should be present in it.