By MM. P SCHUTZENBERGER and N. TONINE.
All portions of this petroleum contain saturated carbides of the formula CnH2n, which the authors name paraffenes. At a bright red heat they yield benzinic carbides, CnH2n-6, naphthalin and a little anthracen. At dull redness the products are along with unaltered paraffenes, products which unite energetically with bromine, and which are converted into resinous polymers of ordinary sulphuric acid. It is difficult to isolate, by means of fractional distillation, definite products with constant boiling points.
NOTES ON CANANGA OIL OR ILANG-ILANG OIL.
[Footnote: From the Archiv der Pharmacie.]
By F. A. FLÜCKIGER.
This oil, on account of its fragrance, which is described by most observers as extremely pleasant, has attained to some importance, so that it appears to me not superfluous to submit the following remarks upon it and the plant from which it is derived.
The tree, of which the flowers yield the oil known under the name "Ilang-ilang" or "Alanguilan," is the Cananga odorata, Hook. fil. et Thomp.,[1] of the order Unonaceæ, for which reason it is called also in many price lists "Oleum Anonæ," or "Oleum Unonæ" It is not known to me whether the tree can be identified in the old Indian and Chinese literature.[2] In the west it was first named by Ray as "Arbor Saguisan," the name by which it was called at that time at Luçon[3] Rump[4] gave a detailed description of the "Bonga Cananga," as the Malays designate the tree ("Tsjampa" among the Javanese); Rumph's figure, however is defective. Further, Lamarck[5] has short notices of it under "Canang odorant, Uvaria odorata." According to Roxburgh,[6] the plant was in 1797 brought from Sumatra to the Botanical Gardens in Calcutta. Dunal devoted to the Ucaria odorata, or, properly, Unona odorata, as he himself corrected it, a somewhat more thorough description in his "Monographic de la Famille des Anonacees,"[7] which principally repeats Rumph's statements.
[Footnote 1: "Flora Indica," i (1855), 130.]