A practical treatise on the manufacture of perfumery : comprising directions for making all kinds of perfumes, sachet powders, fumigating materials, dentrifices, cosmetics, etc., etc., with a full account of the volatile oils, balsams, resins, and other natural and artificial perfume-substances, including the manufacture of fruit ethers, and tests of their purity / by Dr. C. Deite, assisted by L. Borchert, F. Eichbaum, E. Kugler, H. Toeffner, and other experts. From the German by William T. Brannt.

  • Deite, C. (Carl), 1838-1921.
Date:
1892
Catalogue details

Licence: Public Domain Mark

Credit: A practical treatise on the manufacture of perfumery : comprising directions for making all kinds of perfumes, sachet powders, fumigating materials, dentrifices, cosmetics, etc., etc., with a full account of the volatile oils, balsams, resins, and other natural and artificial perfume-substances, including the manufacture of fruit ethers, and tests of their purity / by Dr. C. Deite, assisted by L. Borchert, F. Eichbaum, E. Kugler, H. Toeffner, and other experts. From the German by William T. Brannt. Source: Wellcome Collection.

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    cent, alcohol. If, in executing the test, the kind of tur- bidity is observed, and whether the portion insoluble in alcohol separates, after standing, upon the surface or on the bottom of the fluid, and further, if the above- mentiofifed quantity o^* alcohol is not added at one time, but at first only 1 or 2 parts of it, a conclusion may be drawn as to the kind and quantity of the adulterant. Petroleum causes a milky-white turbidity, while in the presence of fat oil the mixture becomes turbid, but not actually milky. As a rule, fat oil deposits, after standing, on the bottom, while petroleum floats upon the surface of the fluid. Citronella oil adulterated with fat oil does not dissolv^e in 1 to 2 parts nor in 10 parts of 80 per cent, alcohol, while oil adulterated with not too large a quantity of petroleum, gives a clear solution with 1 to 2 parts. The determination of the specific gravity may also serve for the detection of adulterations. This holds good, however, only for petroleum, which reduces the specific gravity, an addition of fat oil pro- ducing no deviation in this respect. The specific gravity of the oil should not be below 0.895 at 59° F. Citronella oil is much used for perfuming cheap hair oils and toilet soaps; it is the chief constituent of all perfumes for honey-soaps. In the American soap in- dustry it is extensively used, the yearly consumption being estimated at IJ million ounces. Cloves, oil of {oleum caryophylli), is obtained by dis- tillation with steam, or by extraction from the cloves of commerce, which are the dried unexpanded flower buds of Caryophyllus aromaticus, L., or the clove tree. Oil of cloves, when fresh, is almost colorless, but on expo- sure to air acquires a brownish coloration and a thickly