EXAMINATION OF A NAPHTHA FROM LIME-SOAP. 



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05 



Formula. 



OBSERVED BOILING POINT 



C12H6 



Ch H 8 

 Cie Hio 

 Cis H12 



79.9° 

 lll.o 



FORMULA. 



Cu His 



C» 1 1 20 



C22 1 122 



C24 1 1 24 



OJisr,iivi:i) ioilimi !• -T 



1530 



174°-175° 



I I 



212.6 



01 



It will be noticed that the observed boiling points of all these bodies go to con<>!> 



previously published by one of 



} A difference of 30° C. for the ad 



of C,H 



2 



•2 



being 



the rule in each of 



series 



higher C~ H 



n 



a 



series. 



which the difference is 



th the 



•20 



gle exception of the 

 lias been previously 



stated. See pp. 168, 176 of 



memoir cited. It will be noticed, moivov 



this research we have encountered, for the fir 



experience, the lower C 



H n series (homologues of olefiant gas), and that its members follow the rule 

 hence the addition of still another series to the list of those known to conform 



of 30 



law 



It is a curious fact that the two C n H n series unite at 15 



We 



n 



whether 

 the lowe 



body, " pelargonene," which boils 



about that temperature, belong 



or to the higher series; or whether, as is possible, it does not belong 



both series. In petroleum we have found it as a member of the higher 



Since the two series thus coalesce, or at all 

 between them, it seems to be proper enough to d 



ee there is no absolute breach 

 the names of the members of 



the hidier series in accordance with the rules which have hitherto been employed by 



— * 



chemists in designating the members of the lower or olefi 



In view of the 



plicity of this course, we have preferred 



dopt it, rather th 



the substances without names, or to attempt to base a system of nomenclature upon 

 the somewhat discordant data concerning diamylene, triamylene, etc, which hav 



■ 



been published. 



of these new bodies can be definitely determined 



It would be premature, at this time, to offer any speculations as to the precise man 



Further researches are of course called for before 



which the hydro-carbons which we hav 



distillation of the lime-soap 



But it is important to bear in mind 

 ^t~whTm coa^aT naphtha we find members of the benzo leseries, and in 



examined are formed during the 



e facts 



coal-oil 



phtha and petroleum two series 



of hydrides and the higher 



of C n IL, we 



have 



here in the produets of distillation of lime-soap a third napht a .Inch stand, u 



some respeets midway between the other two ; for it eontams both benzole, Seho 

 hammer's hydrides, and the higher series of C n H* though it » at the same tune spee.fi 



Known to be impure 



Warren 



