( 265 



h) Temp. 25°. ."iO o/q Alcohol. Coluniiis as under I and 11. 



HCl. 



UNO,. 



1I.,S0,. 



CHClo.COOII. 



V, n. 

 Vi n- 

 Vi n. 



n. 





Si.S 

 82.t> 

 89..S 



Except for sul[)Iiui-ic iicid which yields ;i higher \aluc, liic 

 of the tra,iisfonualion (htes not diffei- much in the case of tl 

 acids. 



IV. INFLUEN'CE OF TIIE TEMPERATHUK. 

 a) Alcohol of 50'V(|. Hydrochloric acid. 



-17.1) 



21.7 



11.4 



10.8 



re hit ion 

 ie olhcr 



//) Water, llvdrochlciric acid 



18° 

 25° 

 50° 

 75° 

 100° 

 100° 



1 



n. 



Vi n. 

 '/i "■ 



0.03 n. 



50 

 50 

 50 

 .50 

 50 

 4 



1.0304 



2 

 2 

 2 

 2 



\ 030 i 



90 . 5 

 89 . 

 80 ü 

 80 . 8 

 74.9 

 00.4-70.0 



10.5 

 12.4 

 15.5 

 23.8 

 33.. 51 

 .50.0— J 1.0 



The lignres given in the tables are in most cases (he axerage of 

 several fairly concordant determinations. 



The inthience of (he (emperatnre as shown by (his (able is again 

 the same for bodi solvents and is shown by a fall in (he i-atio of 

 the transformation with a, rise in the (em|)eralure. 



The following observation should be made as to (he las( cobinni 

 contained in these (ables ; (he subs(ance w hi<'h was no( pi-ecipitatcd 

 as benzidi]ie sulphate is sni)posc(l (o have l)een con>erfe(l in(o 

 diphenyline. This, howexer, has only b(>en once isolaled as such, so 

 that it is nol imi)()ssible (ha( odiei' bas(^s besides diphenyline may 

 have been formed, (he sidpha(es of which are soluble in water. As 

 other investigators have already laken uj) (his subjeel, Di-. \ an Loon 

 has not extended his research in (ha( direc(ion. 



The graphic rei)Cseidations, following here, are those of the above 

 mentioned tables, 



