72 REPORT OF SCHIMMEL & Co. OCTOBER 1915. : 
that the cineol vapours, heated to over 100°, are exposed to the influence of ozone 
or ozonized air in the presence of a catalyst, with preference platinum-black. The 
terpene vapours are oxidized more quickly in consequence, whilst the cascade-like 
arrangement of the receivers of the peroxide facilitates the separation of the compound. 
The same author has taken out patents. for the manufacture of an organic peroxide 
and of terpene oxide’). When ozone acts on cineol at room temperature, in the 
presence of platinum-black, a viscid, thick, non-volatile neutral syrup of brownish- 
yellow colour results. This body of unknown composition is an organic peroxide 
which easily gives off to water eighteen times its volume of loosely connected oxygen. 
It is readily miscible with heavy mineral oils or melted vanillin and is a valuable 
disinfecting agent, which produces a cooling sensation on the skin. 
If anhydrous pure cineol is brought together with an oxidizing anhydrous body, 
such as ozone or ozonized air, and heated to about 60°, approximately half of the 
cineol is transformed into a higher oxide of the formula CioHigQO2. This peroxide 
decomposes with water into a terpene and hydrogen. peroxide. It is meant for the | 
disinfection of wounds, for respiration in cases of advanced consumption, and for 
disinfection of the air by spraying. - 
: 
: 
q 
Urinod, the cause of the characteristic odour of urine. 
It is a well known phenomenon that the urine of a person to whom turpentine oil - 
has been administered takes the smell of violets, but so far no explanation has been 
found for this. Until a short while ago, it was still unknown to what bodies urine 
owes its peculiar odour. It cannot be caused by the volatile substances present 
(formic, acetic, propionic, butyric and benzoic acids, ammonia, methylamine, indole, 
scatole, phenol, p-cresol, &c.). W.M. Dehn and F. A. Hartman?) have now found that 
the smelling principle of urine is a substance, CgHsO, volatile with steam, which 
they call urinod. It is probably identical with 3-cyclohexenone-1. Urinod does not 
occur free in the urine, but in the conjugated form, being liberated by fermentation or 
by the action of dilute sulphuric acid. It boils at 108° (28 mm.), has a penetrating, 
clinging, nauseous smell and is very poisonous. One drop of urinod put on filter 
paper will still smell after 15 months. It yields a dinitro compound melting at 78° 
and a semicarbazone melting at 254°. In order to prepare urinod, sulphuric acid is 
added to urine in the proportion of 3:100, the mixture allowed to stand for several 
days, and then distilled. Out of 1000 litres of urine 5.18 g. of urinod were obtained. 
As to a case of poisoning through American wormseed oil, see p. 43. 
The removal of warts with the aid of cinnamon oil is mentioned on p. 14 of this Report. ‘ 
Chemical Notes. 
Hydrogenation with nickel and hydrogen at different pressure. 
A. Brochet and M. Bauer?) report on hydrogenations with the aid of nickel and 
hydrogen at raised and at ordinary pressure. Cinnamic acid and methyl cinnamate 
yield, under a pressure of from 8 to 15 kg. per square cm., phenylpropionic acid and 
ae a _ 
1) U. S. Pat. 1097940 and 1098356; Chem. Ztg. Repert. 39 (1915), 104. — *) Jowrn. Americ. chem. Soc. 
86 (1914), 2118, 2136. — %) Bull. Soc. chim. 1V. 15 (1914), 554; 17 (1915), 50, 55. Comp. Report April 1915, 80. - 
