Constitution of organic compounds : being a brief account of the different theories advanced on this subject : read before the Cambridge Scientific Association, Nov. 1852 / by Henry Erni.

  • Erni, Henry
Date:
1853
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Licence: Public Domain Mark

Credit: Constitution of organic compounds : being a brief account of the different theories advanced on this subject : read before the Cambridge Scientific Association, Nov. 1852 / by Henry Erni. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    admits, now-a-days, of contradiction, as wc will see hereafter. There are. also, probably radicals which contain S and Ph. The following diagram will, with regard to the internal composition of oil of bitten- almonds, exemplify how even advocates of the radical theory may be led to different con- clusions. View of Ternary Radicals. Radical =z C14H502 r= Benzoyl. Oil of bitter almonds = C]4H502-f-H. Chloride of benzoyl = CHIIA+Cl. Sulphuret of benzoyl = C14H502-f-S. View of Binary Radicals. Radical = C14H6 = Picramyl. (Ci4Hc)Oa = oxide of picramyl. ci C + ^2 ~ oxi^e 0I picramyl, in which' one atom of chlo- rine replaces one atom of hydrogen. C H ) U S S ~*~ °a ~ •3^e of pici'amyl, in which one atom of sul- phur replaces one atom of hydrogen. Lowig believes in the existence of single radicals, for the following reason: oxalic acid, combined with oxide of lead, dried at 100° C. has the formula C203. Those chemists who consider this acid to be a higher oxide of carbon than car- bonic oxide, = 2CO-J-0, render obvious the reason why it is so easily decomposed into CO and C02. But its strongly acid properties are not explained; besides, oxalic = rhodi- zonic = krokonic acid, belonging to one series, must then, although of organic origin, be ranked among inorganic acids; then oxides of carbonic oxide cannot be considered as organic bodies. To remedy this, Lowig assumes the existence of singular radicals, which consist of one or several atoms of one and the same element united as a whole by polar attrac- tion. Oxalic acid contains, then, a radical (C2), = oxatyl,
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