22 REPORT OF SCHIMMEL & Co. OCTOBER 1915. 
Original resor- seen Difference | Modified resor- 
cinol method: of tes oil =. real cinol method: 
No. shaking palchilated cineol | shaking fraction 
of the oil for CyH,,0 | percentage 170 to 190° 
found: found: of the oil found: 
| 
Cineol aii. Ss essa ee 50%: ©3)|]>e 
fei AIMONeNe 2 es. ease ee OP te 76-pzc: 27 p.c. | 49 p.c. 52 pie: 
erpineol-.? <a ie. 23.8 é 
GINO) 258 MEE P60: 
Zo eimOnenes 2 teste. ite EON A 70°%;; 10%% 60, 62 ,, 
Ferpineol.< 2%." hs. Seas 107% 
3. | So-called Australian Eucalyptus oil 17 Sy Ors. 10" 
4. | Eucalyptus oil, Globulus ... . 92 ,, D5, Olea Shas 
Oe Cajupit oil 2 seri) ses sates 80 _,, Fa Moyers (ole eare ce 63.4 
Further experiments will be. necessary to establish in how far this modification 
is useful in the examination of oils. We would therefore recommend it only con- 
ditionally for the present. 
As regards Turner and Holmes’ statements, referred to on a previous page, it is 
satisfactory to note that they characterize the phosphoric acid method, so much vaunted 
by a few English chemists, as useless, an opinion which we held from the first, and 
which, according to the Perfumery and Essential Oil Record [6 (1915), 206] was reproduced 
in recent times in The Chemist and Druggist of Australasia. 
The fact that the Australian oil of Eucalyptus globulus satisfies the requirements 
of the U. S. Pharmacopoeia, but not the Californian oil, has induced C. E. Burke and 
C. C. Scalione*) to examine the composition of Californian oil more closely. They 
found the oil to contain the same constituents as the Australian oil but in other pro- 
portions. The yield from fresh leaves was 0.8p.c.; doo 0.9052; [@]p0 14.42° (+ 2); 
Np»0 1.46053; insoluble in 70 p.c. alcohol; acid v. 0.73; sap. v. 2.5; ester v. after 
acet. 50.0. The raw material used in California mostly consists not only of leaves 
from Eucalyptus globulus, but also of a sprinkling of other varieties. The authors 
examined the oil obtained from such material. It was found to contain butyraldehyde 
and isovaleraldehyde, which yielded ammonia addition products of the m. p. 26 to 27° 
and 52 to 53°, respectively. In a fraction of the b. p. 100 to 140°, capronaldehyde 
was probably present. «-Pinene (d-?) was characterized by the determination of the 
physical properties and the- preparation of the nitrosochloride (m. p. 102 to 103°). 
Cineol was found to the extent of 47 p.c. (phosphoric acid method). Eudesmol and 
globulol could also be established without difficulty *?). Eudesmol showed the molecular 
refraction 68.001, whereas a sesquiterpene alcohol CisH..O/" requires 68.069. This 
amounts to a confirmation of Semmler’s opinion, according to which eudesmol is an 
unsaturated sesquiterpene alcohol, and not an oxide as suspected by Baker and Smith. 
The quantitative composition of the oil may be about as follows: 6 p.c. aldehydes, 
21 to 22 p.c. pinene, 47 p.c. cineol, and 23 p.c. of alcohols. It is probably due to 
the high percentage of pinene that the oil does not come up to the requirements of 
the U. S. Pharmacopoeia. 
1) Journ. Ind. Eng. Chemistry 7 (1915), 206. — *) Comp. Report October 1918, 56, 57. 
a —— ss 2 
