Quarterly Journal of the Indian Chemical Society, Volume 3Calcutta University Press, 1926 |
Contents
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| 245 | |
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| 410 | |
| 431 | |
| 432 | |
| 435 | |
| 437 | |
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Common terms and phrases
acetone added adsorbed adsorption alcoholic solution alkali allo-acid ammonia anions arsenious sulphide barium chloride benzene benzidine benzylamine boiling carbon catalyst cent Chem chloroform coagulation cobalt colloidal colour colourless compound Conc concentration condensation cooled copper crystallised crystals decomposed decomposition dilute dissolved electrolytes equivalent ester ether evaporated excess experiments extracted ferricyanide filtered filtrate flask formed Found fuming gave gelatine glucose heated hydrochloric acid hydrogen ions hydrogen sulphide hydroxyl hydroxyl ions increase insoluble iodic acid iodide iodine light lime liquid melted methyl alcohol mixture molasses molecules naphthalene negative charge nickel nitrate nitric acid observed obtained oxalic oxide particles pinene positive charge potassium chloride potassium sulphate precipitate prepared presence PtCl PtCl2 purity pyridine quantity reaction requires residue RNHCO rubeanate salts silver sodium solid sparingly soluble substance sucrate sucrose Sucrose recovered sulphur dichloride sulphuric acid surface TABLE temperature thiodiazine tion velocity washed water-bath yield
Popular passages
Page 9 - I had not even thought of applying it to the test of nitrous air; but thinking (as my reader must imagine I frequently must have done) on the candle burning in it after long agitation in water, it occurred to me at last to make the experiment; and putting one measure of nitrous air to two measures of this air, I found, not only that it was diminished, but that it was diminished quite as much as common air, and that the redness of the mixture was likewise equal to that of a similar mixture of nitrous...
Page 9 - I presently found that, by means of this lens, air was expelled from it very readily. Having got about three or four times as much as the bulk of my materials, I admitted water to it, and found that it was not imbibed by it. But what surprised me more than I can well express was that a candle burned in this air with a remarkably vigorous flame...
Page 5 - Salt -peter is a menstruum, when melted and red-hot, that abounds more with those Dissolvent particles, and therefore as a small quantity of it will dissolve a great sulphureous body, so will the dissolution be very quick and violent. Therefore in the Eleventh place, it is observable, that as in other solutions, if a copious and quick supply of fresh menstruum, though but weak, be poured on, or applied to the dissoluble body, it quickly consumes it: So this menstruum of the Air, if by Bellows, or...
Page 16 - The contents of this section will furnish a very striking illustration of the truth of a remark, which I have more than once made in my philosophical writings, and which can hardly be too often repeated, as it tends greatly to encourage philosophical investigations; viz. that more is owing to what we call chance, that is, philosophically speaking, to the observation of events arising from unknown causes, than to any proper design, or pre-conceived theory in this business.
Page 9 - I frequently mentioned my surprise at the kind of air which I had got from this preparation to Mr. Lavoisier, Mr. le Roy, and several other philosophers, who honoured me with their notice in that city; and who, I daresay, cannot fail to recollect the circumstance.
Page 5 - Sixthly, that in this dissolution of bodies by the Air, a certain part is united and mixt, or dissolv'd and turn'd into the Air, and made to fly up and down with it...
Page 15 - I then placed a small lighted candle in it; scarcely had this been done when the candle began to burn with a large flame, whereby it gave out such a bright light that it was sufficient to dazzle the eyes. I mixed one part of this air with three parts of that kind of air in which fire would not burn; I had here an air which was like the ordinary air in every respect. Since this air is necessarily required for the origination of fire, and makes up about the third part of our common air, I shall call...
Page 9 - I endeavoured to extract air from mercurius calcinatus per sc; and I presently found that, by means of this lens, air was expelled from it very readily. Having got about three or four times as much as the bulk of my materials, I admitted water to it, and found that it was not imbibed by it. But what...
Page 10 - I now concluded, that all the constituent parts of the air were equally, and in their proper proportion, imbibed in the preparation of this substance, and also in the process of making red lead.
Page 9 - At the same time, I had no suspicion that the air which I had got from the mercurius calcinatus was even wholesome, so far was I from knowing what it was that I had really found; taking it for granted, that it was nothing more than such kind of air as I had brought nitrous air to be by the processes above mentioned; and in this air I have observed that a candle would burn sometime quite naturally, and sometimes with a beautiful enlarged flame, and yet remain perfectly noxious.