429 



Substance 



Q"^"t- Solvent ■ I I 



in gr. 



an 



ccm ccm 

 Pd-sol. H2 H2 

 in ccm. calcu- absor- 



lated bed 



Velocity , 

 in ccm. ; T. 

 per 10' 



Observations 



Cinnamic acid 



Undecylenicacid- 

 aethylester 



Cinnamic acid- 

 aethylester 



25 



26 



23 Cinnamic acid- 

 aethylester 



24 



H,0 



1.2387 

 0.8909 



1.0971 



2.0832 



not meas 



2.1102 



2.0403 

 2.0176 



1.4190 



2.0210 



2.3121 



2.2081 



75 



0.7265 

 0.4792 



96 0/0 ale. „ 

 1.3010 „ 100 



1.6514 



1.1263 80^0 ale. 



75 



100 



100 



117 



62 



146 



147 



189 

 132 



144 



175 

 155 



118 



78 



144 



149 



192 

 130 



143 

 113 



153 

 133 



25 



II 



13 



80 



110 



92 



94c 



II 

 18 



16 

 17.7 



105 18.2 

 5.5 26 



75 



158 103 



493 447 



351 

 1276 



313 

 1161 



80 

 28 



40 



+ 10 



35 



40 

 + 50 



25 



Irregular 



Idem. 



Very regular. 

 After the first 10' a 



considerable retard- 

 ation; flocking-out. 

 Idem. 

 Retardation ; no 



flocking-out. 

 Idem. 



The course of the 

 hydration was a 



very slow one, cause: 



very pureH2(c.f.text). 

 Hydrogen contain- 

 ed O, ; course very 

 regular. 

 Idem. 



Course auto-cataly- 

 tic, was not con- 

 tinued upto the end. 

 Hydrogen contain- 

 ed Oj. 



Great retardation, 

 cause unknown. 

 Hydrogen contain- 

 ed O.K 



Idem. 



Idem; course auto- 

 catalytic. 



H2 very carefully 

 purified", from 



■ oxygen. 

 H2 not conducted 

 over Cu-spirals. 

 Cu-spiral was used; 

 but H2 still contain- 

 ed O2; very regular 

 reduction. 

 Strongly inclined 

 curve. 

 Idem. 



Idem; towards the 

 end almost com- 

 pletely paralysed. 

 Partially flocked- 

 out, after the addi- 

 tion of 3 ccm Pd. 

 sol unexpectedly 

 strong acceleration, 

 then paralysis again. 



No flocking-out; but 

 decrease of velocity. 



Idem. 



