Chemical technology and analysis of oils, fats and waxes / by Dr. J. Lewkowitsch.

  • Julius Lewkowitsch
Date:
1914
Catalogue details

Licence: In copyright

Credit: Chemical technology and analysis of oils, fats and waxes / by Dr. J. Lewkowitsch. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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    little practised, since the detection of the smaUest quantity of sesame oil IS rendered easy by the Baudouin test. _ The lower qualities of sesame oil find a large outlet for soap-making m the south of Europe and are especially used in the manufacture of the Marseilles mottled soap (cp. Vol. III. Soap Manufacture ) • they are also used as bm-ning oil and for making india-rubber substitutes A speciahty of the Marseilles trade is the employment of oH extracted horn damaged seeds with carbon bisulphide ^ in the soap industry buch extracted oil is now being exported to Germany. BASSWOOD OIL ^ 'Fvench.—Huile de hois de tilleul. Geiman—Lindenholzdl. Italian—Olio di legno di tiglio. This oil is obtained from basswood {Tilia americana, L.) (a tree widely distributed in America from Vii-ginia to the Alleghany mountains, in Georgia, Nebraska, and Kansas) by extracting the rasped wood with ether. Physical and Chemical Characteristics of Basswood Oil — SpeciSc Gravity. Solidifying Point. Saponiflc. Value. Iodine Value. At 15° C. (Water 15° a = l). •c. Mp^rms. ICOH. Per cent. 0-938 -10 178-1 ill The seeds from Tilia parvifoUa ( = Tilia cor data, Mull.) yield an oil, the characteristics of which will be given below in the table headed Lesser known semi-drying-oils. LEMON PIPS OIL French—Huile de pepins de citrons. German—CitronenJcerndl. Italian—Olio di semi del limone. Lemon pips oil is obtained as a pale yellow oil having a bland flavour recalling that of almond oil, by extraction of dried and ground lemon pips with solvents. A specimen examined by Peters and Frerichs ^ had the saponification ^ Boutoux, Les Matiires Grasses, 1910, 1857. ^ Weichmaim, Journ. Soc. Chem. Ind., 1895, 665. ' W. Peters and G. FrericLs, Arch. d. Ptuirm., 1902 [240], 659, Journ. Soc. C/iem. Ind., 1903, 102.