50 : REPORT OF SCHIMMEL & Co. OCTOBER 1915. 
Oil of Cinnamon, Ceylon (Actheroleun cinnamon) Pale yellow; dis0 1.023 ‘to 
1.040; soluble in 3 parts of Spiritus dilutus. . 
Oil of Cloves (Aetheroleum caryophylli). Nearly colourless or yellow, becoming 
darker with age; dis0 1.044 to 1.070; soluble in 2 parts of Spiritus dilutus. 
Oil of Fennel (Aetheroleum foeniculi). Colourless or pale yellow; d1500.965 to 
0.975; soluble in 1 part of Spiritus; when cooled below 0° the oil separates crystals +). 
1) Fennel oil does not always become solid of its own accord when cooled, but it becomes solid at once . 
if a particle of solid fennel or anise oil, or anethol, is added to the chilled oil. When improperly stored, the 
congealing point of the oil; becomes lower, until finally it does not congeal any more. Comp. Report 
October 1904, 42. 
Oil of Lemon (Aetheroleum citri). Light yellow; dis0 0.855 to 0.861; almost com- 
pletely soluble in 12 parts of Spiritus. 
Menthol (Mentholum). Colourless, brittle crystals, almost insoluble in water, 
readily soluble in Spiritus, ether, chloroform, and fixed oils. M. p. 43 to 44°*); when 
pressed between filtering paper no spots should appear on the paper. 0.5 g. of menthol 
should sublime on the water-bath without leaving any weighable residue. 
1) The melting point lies between 42 and 44°. 
Oil of Mustard (Aetheroleum sinapis). Colourless or pale yellow, becoming darker 
with age; dis0 1.022 to 1.0251); soluble in every proportion of Spiritus. 
1) As the pharmacopoeia does not make any statements as regards process of manufacture, the natural 
as well as the artificial oil may be used, if the latter has the required specific gravity. The limits have been 
drawn a little too narrow, with the natural oil they lie between 1.016 and 1.022, and with the artificial oil 
between 1.020 and 1.025. 
Oil of Peppermint (Aetherolewm menthae). Colourless or yellowish. diso 0.90 
to 0.91. 
Oil of Rose (Aetheroleum rosae). Colourless or pale yellow; dsoo0 0.85 to 0.863; 
at 18° it begins to separate crystals and congeals little by little to a crystalline mass. 
Oil of Sandalwood, East Indian (Aetheroleum santali). Colourless or pale yellow; 
dino 0.973 to 0.985; soluble in 6 parts of Spiritus dilutus, the solution should remain 
clear even when further diluted. 
Thymol (Thymolum). Colourless crystals, soluble in about 1100 parts of water 
and in 100 parts of glycerin, readily soluble in Spiritus, ether, chloroform, fixed and 
volatile oils as well as in soda lye; m. p. 50 to 52°; 0.5 g. of thymol should sublime 
on the water-bath without leaving a residue. Identity reactions and test for phenol. 
a re 
Oil of Turpentine, rectified (Aetheroleum terebinthinae). Colourless; dis0 0.860 
to 0.870; boiling temperature 155 to 162°; soluble in 8 parts of Spiritus, ; the Station 
should not give an acid reaction. 
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