Chemical method, notation, classification, & nomenclature / by Auguste Laurent ; translated by William Odling.
- Auguste Laurent
- Date:
- 1855
Licence: Public Domain Mark
Credit: Chemical method, notation, classification, & nomenclature / by Auguste Laurent ; translated by William Odling. Source: Wellcome Collection.
396/414
![fordinary sulpho 3 C2IP S + IPN— IPS =thialdine Aldehyde] benzoic .... 3C7IP Of 2 IPN—3 II20=amarine l furfur ic .... 3 CTPO.O + 2 H3N—3 IPO = furfurine. Under the influence of oxygenants, the monalides pass into the state of deuterides (acids), and their mono-cliloro-varieties, when submitted to the action of water or alkalies, pass into the same state. Thus we have with at (benzoic .... C7H6 0+ 0=benzoic acid y eichlorobenzoic C7IPC10 + IPO = benzoic acid + IICl. The monalides have certain relations with the alcohols. We might say, that the former are to the carbhydrides, what the latter arc to the hyperhydrides: Deutene C2IP Ethene C2IP.H2 Deutal C2IP + 0 Ethol C2IP.H2 + 0. Moreover several monalides are capable of giving rise to combina- tions analogous to the ethers and vinic acids. Thus wfc are acquainted with a considerable number of acids, formed from sul- phurous acid, and the benzoic, salicylic, cuminic, anisic, capric, ocnanthylic, &c., aldehydes, in virtue of the equation : IPSO3 + Aldehyde—Aq. 2°, Deuterides, which are monobasic acids. We have already said, that the acids are salts of hydrogen, or hydrogenised molecular types, of which one or several atoms of hydrogen may be replaced by any metal whatsoever. This defini- tion, though based upon the fundamental character of the acids, does not yet suffice to isolate these bodies from all others ; for we meet with many compounds which possess this character to a greater or less degree, and which, notwithstanding, are never accounted acids; such a body for instance is ammonia, which is capable of exchanging 1, 2, and 3 atoms of hydrogen for an equal number of atoms of certain metals. To the above mentioned character then, we must add the following: acids redden the colour of litmus, effervesce with carbonates, destroy the alkalinity of bases, and arc capable of forming ethers. But on a more close examina- tion, we perceive, that all these characters are but varieties of the first or fundamental one ; for the appearance of the red colour of litmus, indicates to us, that the acid under examination has exchanged its hydrogen for the metal of blue litmus; the disen-](https://iiif.wellcomecollection.org/image/b28057351_0396.jp2/full/800%2C/0/default.jpg)
