A Treatise on Chemistry, Volume 2, Part 1D. Appleton, 1884 - Chemistry |
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Common terms and phrases
alcohol alkali alloy ammonia ammonium anhydrous barium basic beryllium boiling Bunsen cadmium cęsium calcium carbon dioxide caustic potash cent Chem chlorate colour colourless common salt composition compound concentrated solution contains converted cooling copper sulphate crucible crystalline crystals cupric cuprous cyanide decomposed decomposition deliquescent deposited dilute easily soluble employed evaporated flame fluoride formed furnace fused H₂O heated hydrate hydrochloric acid hydrogen hydroxide ignited insoluble iodide iron Journ lead chloride lime liquid lithium magnesia magnesium mass melts mercury metal mineral mixed mixture molecules monoclinic monoxide nitrate nitre nitric acid obtained occurs oxide oxygen phosphate platinum possesses potassium carbonate potassium chloride powder precipitate prepared prisms pure reaction readily red-heat residue rhombic rubidium sal-ammoniac saturated separates silicate silver chloride small quantity soda sodium soluble soluble in water specific gravity strontium substance sulphide sulphuretted hydrogen sulphuric acid temperature thallium vapour volatile water dissolve whilst yellow zinc
Popular passages
Page 55 - 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 explosion and bright flame, as soon as they were formed, and others remained, and...
Page 32 - 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 229 - Compounds of barium with fixed acids, giving no reaction either when alone or after addition of hydrochloric acid, should be fused with carbonate of sodium as described under strontium, and the carbonate of barium thus obtained examined. If barium and strontium occur in small quantities together with large amounts of calcium, the carbonates obtained by fusion are dissolved in nitric acid, and the dried salt extracted with alcohol: the residue contains only barium and strontium, both of which can...
Page 55 - ... 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 217 - 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. Hence I hesitate not to say that optical analysis can distinguish the minutest portions of these two substances from each other with as much certainty, if not more, than any other known method.
Page 324 - 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 365 - Add, drop by drop, stirring all the time with a glass rod, as much liquid ammonia as is just necessary to obtain a clear solution of the grey precipitate first thrown down. Add 4 oz.
Page 324 - Petersburg!), has also made a discovery which promises to be of little less importance to the arts. He has found a method — if we understand our informant rightly — of converting any line, however fine, engraved on copper, into a relief, by galvanic process.
Page 240 - ... 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 55 - ... metallic lustre, and being precisely similar in visible characters to quicksilver, appeared, some of which burnt with explosion and bright flame, as soon as they were formed, and others remained, and were merely tarnished, and finally covered by a white film which formed on their surfaces. "These globules, numerous experiments soon showed to be the substance I was in search of, and a peculiar inflammable principle the basis of potash.