— 138 — 



Bergamot Oil (Oleum Bergamottce). « D +8 to +20°, occasionally 

 higher; evaporation residue 5 to 6°/o 1 ). *> ' 



x ) The minimum limit should be reduced to 4,5. 



Bitter Almond Oil (Oleum Amygdalce amarce). The oil containing 

 hydrocyanic acid is now incorporated in lieu of the oil free from hydro- 

 cyanic acid. Colourless 1 ); d 15 , 50 1,045 to 1,060; « D ±0°; b. p. 179°; sol. 

 in any proportion in 90% alcohol. The natural oil may contain from 

 4 to 5°/o hydrocyanic acid; oil to be used for medicinal purposes should 

 contain from 2 to 4% hydrocyanic acid. Test for the absence of chlorides 

 and nitrobenzene. 



x ) Bitter Almond Oil assumes a yellowish colour with age. 



Cajuput Oil (Oleum Cajuputi). di 5)5 o 0,919 to 0,930; « D lsevorotatory 

 up to — 4°. 



Camphor (Camphor a). M. p. 175 to 179°. 



Camphor Oil (Oleum Camphorce essentiale). d 15l5 o after removal of the 

 safrol about 0,960. Heavy camphor oil containing safrol has d 15 , 50 1,000 

 to 1,025; light camphor oil has d 15l5 o 0,890 to 0,920 and a D -f- 16 to + 30 01 ). 

 As in the first Edition, it is again correctly stated that no definite stan- 

 dards can be given concerning its properties. 



L ) The rotation is often considerably lower than 16°. 



Caraway Oil (Oleum Carui). « D ~\- 70 to -f- 82°; carvone-content 

 45 to 60%. 



Cassia Oil (Oleum Cassice). d 15(50 1,055 to 1,070; lead test 1 ). 



x ) Notwithstanding all pains taken to procure oils which answer to this test, it is 

 found impossible to do so. 



Cedar Wood Oil (Oleum Cedri). d 15 , 5 o 0,940 to 0,950^; « D — 30 to — 45°. 



x ) For the maximum limit 0,961 would be a more correct value. 



Chamomile Oil, German (Oleum Matricarice Chamomillce). d 15)5 o 0,930 

 to 0,94c 1 ). 



x ) The sp. gr. ranges from 0,924 to 0,945. 



Cinnamon Oil, Ceylon (Oleum Cinnamomi). d 15(5 o 1,000 to 1,030^; 

 cinnamic aldehyde content about 55 to 65% 2 ), 



*) The sp. gr. of normal Ceylon cinnamon oil ranges from 1,023 to 1,040. 



2 ) Normal oil contains from 65 to 75°/o cinnamic aldehyde. Comp. Report October 1910, 35. 



Citronella Oil (Oleum Citronellce). Nearly colourless 1 ) or pale yellow; 

 di5, 5 o 0,900 to 0,920 (for Java oil not below 0,885); « D usually between 

 and — 15°; sol. in 3 to 10 parts 80% alcohol without turbidity. To| 1 

 geraniol in Java oil 80 to 90°/ , in Ceylon oil 55 to 65%. 



x ) Ceylon Citronella Oil is generally yellow to yellowish brown. 



Clove Oil (Oleum Caryophylli). d 15 , 5 o 1,047 to 1,065; « D 1 as vo rotatory, 

 up to — 1°30'; sol. in 3 vols. 70% alcohol. 



Copaiba Oil (Oleum Copaibce). d 15)5 o 0,896 to 0,910. 



