( 4<S2 ) 



f'urjlioi' fvxporiiiMMils will disclose ;i sccctjid plailpoiiil oii llio li<[ui(l 

 side (if lli(> plail. as iH-cMÜctcd iiiaiiv y(\irs auo l)v van dvm Waat.s 

 from llic \alii(' (dllK' xoliiiiic-coiislaiils. 1 cxuccl lo hc aide lo llirow 

 more liiilil (lil tliis suhjccl l»v tlio coiiliiiiialioii (d' iiiv iiiNcsliualioii willi 

 llic Id.Liiici' livdrocarWoiis. l^llicr aiid walcr heliaxc in all |ti-ol)ainlity 

 ill a iiiatiiici- siiuilai" lo iiicdiy lalcidiol and elliane. 



Chemistry. — "(hi f/ic SD-cdJh-d com/xui/if/s of sails (tf' siiljilntii- 

 C'n-ho.r////r i/c/'i/s ii'ltli sul itliuric rs/i'/s.'' \\\ l*r<d'. A. I*. N. 

 Franciiimont. 



(( loimiiiiiiicilcil in llir iiiccrniL; itf .laiiii.ii y :il, l!Mi:i). 



'[ï\i' lirsl of' this kind of coniitoiiiids was ohlaincd accidcnially l»y 

 L.MI5K in l<S71) in llic laboraloiy of ( li'.i Tni'.u in .Icna. lic wanted lo 

 reduce sodinni sul|»lionacelale willi >odinni anialiiani and water, Inil 

 alter acidity iiiii' with >nl|>lnii-ic acid, e\ a|)oralin,ü', and extiaclinü- w illi 

 absolute alcolad, lie ol»laine(l an acid li(|iiid w liicli uaxc w illi hariiini 

 carlioiiate a sail of the eiii|iirical coiii|tosition ( ',. II , , l>a S., ( ),^,. This 

 salt has. theretore. the coiii|>osilioii id' one nioleciile ol' hariiini 

 siilphonacetale plus one nioleciile of ethyl sidphale plus one niolecide 

 (d" walci' and may, accordinii' lo ( ii:i 'IIIKK. he considered as a deri\- 

 ati\(' (d' a disiilphiiric acid in \\ liicli Iwo liydr(»u('ii .itoiiis lia\('l»een 

 replaced l>y ethyl groups and one ( )l I L^roiip hy the 2ronp ( Ml., ('()()]!. 

 lie ohiaiiied the same compoiiiid hy diucsliiiü' a mixlnre of sodium 

 siilphonacelatc, sodiuindiydroucn siilphale and alcolnd. The acid was 

 calle<l "Didclliiilcss'iiid'iscliircf'i'lsiiiiri". Acetic aci<l itself did iKtl yicdd 

 a similar compound. 



In |S(S;). in the same lahoratory. Stkn(;i:i. snccessfnlly altempled 

 lo olttain a similar compound willi inetasnlplu>l»eii/oic aci<l; the 

 analysis uaxc the composition ( ', , II , , ( ). S.JJa -j- 3'/., 1I._,< ). The acid 

 was called -l)ii(<iliiill)('ii:i>ririscltii'cf(lsiinrr'. Analo.Lj'oiis coin|)oiin<ls 

 were also ohtaiiied with methyl and propyl alcohol. lieii/.oic acid, 

 howcNcr, did not uixc a sindlar compound and it is, tlier(d'ore. altri- 

 Imled to the siilphonic acid üronp. 



l'A(;i:i.(kK, ohtained similar c(.»inpoiiiids with isethioiiic acid IhiI lud 

 with hen/enesiilphoiuc acid and Xi'i'iucK did not ohtaiii it with 

 melhylsiilphonic acid. 



(«Ki'lMiKK looked upon these compounds as salts (d' a deri\ati\t' cd' 



() () 



disidphiii-ic acid S„()„ll, siudi as ( '„ II, — Sx /^ \ 



\ I \ () / \ ( )C., H^ 



CO.H OH 



