Chemistry of Essential Oils

398 THE CHEMISTRY OF ESSENTIAL* OILS

Mixed roses, in the fair average proportion in which they are distilled

in practice in the South of France, will give analyt

i

cal values approximat-

=6

O

fa

ing to the following, but of course their limits are exceeded if certain

roses are used in greater proportion :—

Specific gravity 0-859 to 0-874

Rotation - 2° „ - 4°

Saponification value....... 15 ,, 35

Melting-point 19° „ 28°

Total alcohols 70 to 78 per cent.

Geraniol 3 5 „ 42

Citronellol 3 5 ,, 45 „