This section is from the book "A Text Book Of Materia Medica, Being An Account Of The More Important Crude Drugs Of Vegetable And Animal Origin", by Henry G. Greenish. Also available from Amazon: A Text Book of Materia Medica : Being an Account of the More Important Crude Drugs of Vegetable and Animal Origin.
The oil expressed from the Bitter or Sweet Almond. See p. 161.
Pale yellow, nearly inodorous. Specific gravity 0.915 to 0.920; iodine value 93 to 100; does not congeal above - 18°.
Consists of the glyceride of oleic acid and a little linolic acid; it contains no stearic acid. 'Kernel' oil, which may be used to adulterate almond oil, is obtained from apricot kernels (or possibly peach kernels); it may be detected by shaking 1 c.c. with 5 c.c. of a cooled mixture of equal parts by weight of sulphuric acid, fuming nitric acid and water (Bieber's test).