_ 8 9 - 



0,1016 gm. of the substance: 0,2362 gm. C0 2 ; 0,0836 gm. H 2 0. 

 Found Calculated for C 11 H 19 ON 3 



C 63,4% 63,1% 



H 9,14% 9,i% 



Attempts made to regenerate the aldehyde from the semicarbazone 

 by means of sulphuric acid, did not succeed, as the aldehyde on 

 being set free resinified for the greater part. 



The oxime is formed very readily, and quantitatively, when the 

 aldehyde in alcoholic solution is mixed with hydroxylamine hydro- 

 chloride and potash liquor. After cooling, the oxime, when water is 

 added, is precipitated as a crystalline powder, and is obtained by 

 crystallisation from alcohol in the form of large brilliant tablets of the 

 melting point 87 to 88°. 



0,1364 gm. of the substance: 0,3599 gm. C0 2 ; 0,1254 gm. H 2 0. 

 Found Calculated for C 10 H 16 NOH 



c 71,96% 71,92% 



h 10,15% io,2<>/ 



The phenylhydrazone is not very suitable for identification, as it 

 resinifies extremely readily, especially if not quite pure. It crystallises 

 from alcohol in long white needles of the melting point 122 to 123 °. 



Oxidation of phellandral. 



As the aldehyde readily oxidises on exposure to the air, about 

 3 gm. were left for 3 or 4 days on a rather large watch glass. After 

 the lapse of this period the bulk had solidified in crystalline form. 

 In order to remove any non-acid constituents, the reaction-mass was 

 dissolved in soda solution, well extracted with ether, and the organic 

 acid then precipitated with sulphuric acid. It is very little soluble 

 in water, readily in hot alcohol, from which it is obtained in the form 

 of small needles of the melting point 144 to 145 . 



0,1389 gm. of the substance: 0,3643 gm. C0 2 ; 0,1146 gm. H 2 0. 



Found Calculated for C 10 H 16 O 2 



C 71,53% 7i,4% 



H 9,17% 9,5% 



The silver salt of the acid forms flakes insoluble in water. 



0,2664 gm. of the substance: 0,1062 gm. Ag. 



Found Calculated for C 10 H 15 O 2 Ag 



Ag 39-86% 39.36% 



The same acid was also obtained by oxidation with moist silver oxide. 



