This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...is reached, the system contains J mol. of acetic acid ] J mol. of alcohol + mol. of ester + mol. of water. Every substance participating in the equilibrium acts in proportion to its mass. If the above equation is given the form-= K---, it becomes evident that, in order to displace the equilibrium so as to have a ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...is reached, the system contains J mol. of acetic acid ] J mol. of alcohol + mol. of ester + mol. of water. Every substance participating in the equilibrium acts in proportion to its mass. If the above equation is given the form-= K---, it becomes evident that, in order to displace the equilibrium so as to have a greater value of z (i.e. of esterificalion), the value of a must be increased and that of 6 deereased, esterification being complete when a = oo. The same final result is obtained when 6 is much greater than a, esterilication again being complete when b = oo. In practice, almost complete esterification is attained when 1 mol. of acid is employed per 10 mols. of alcohol or vice versa. That the same result is obtained with excess of alcohol as with excess of acid is shown by the above equation, since, if instead of m mols. of both acid and alcohol, n times as many molecules of acid are taken, the equal ion becomes: -= K---; whilst if n times as many molecules of alcohol PREPARATION OF ESTERS 871 taken, it becomes: --= f-----. But these two equations are identical, multiplioa 2 m--z' tion of the terms of the former bv--giving the latter. To--z The limit of esterifieation is modified but slightly by change of temperature and amounts, in the case of acetic acid, to ( 2-2 per cent, at 10 and to 66-5 per cent, at 220. The esters of inonohyclric alcohols and monobasic fatty acids are neutral liquids lighter than water (0-8 to 0-9) and pleasant smelling (some forming artificial fruit essences); they are slightly soluble in water (the first members more soluble than the higher ones) and they boil undecomposed. By means of Grigiiard's reaction (see p. 203), they yield tertiary alcohols. The esters are hydrolysed into their components when heated wit...
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Add this copy of Treatise on General and Industrial Organic Chemistry to cart. $19.99, poor condition, Sold by Anybook rated 4.0 out of 5 stars, ships from Lincoln, UNITED KINGDOM, published 1921 by J & A Churchill.
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Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 2450grams, ISBN:
