A liquid of boilingpoint 195 degrees C., isomeric with geraniol, occurring as linalyl acetate in the cacaobean and the oils of lavender, coriandcr, neroli, and sage.
LIQUORICE JUICE,
as obtained from the roots of the GJtycyrrhiza glabra and Gl. echinata, contains a sweet, amorphous substance, soluble in alcohoi and hot water, named glycyrrhizin, which is said to yield glucose when boiled with dilute sulphuric acid. Spanish liquorice is used as a demulcent remedy for coughs, etc.
LEUCO BASES
Colourless compounds produced by reduction of dyes which are reconverted by oxidation into lyes.
LAUREL OIL
A bright, yellow, volatile oil of arnmatic odour; soluble in alcohol, ether, and chloroform; distilled from the leaes of Lauras nobilis, and used in medicine. Its sp. gr. is 0924.
LAVENDER FLOWER OIL
is distilled from the flowers of Lavandula officinalis, and is more fragrant than the spike oil. It is nearly colourless, has a sp. gr. of 0885 to 0897, optical rotation 50 to 8 degrees, is soluble in alcohol, ether, etc.. and is used in perfumery. It contains linalool, linalyl acetate, geraniol, and cineol.
LEUCINE
A decomposition product of albuminoid bodies generally accompanying tyrosine in the animal economy.
LINALOE OIL
A Mexican distilled wood oil of colourless, fragrant character, containing linalool and geraniol, having a sp. gr. of from C875 to oSgo, soluble in alcohol and ether, and used in perfumery.
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