__________________________________________________________________________ | | | | | | Saponi- | | | | | fication | Titre,| Iodine | Observers.| References. | Equiv- | | No. | | | alent.[6] | deg.C.| | | |___________|_______|________|____________|_______________________________ | | | | | | 295.1 | 78.12 | 42.5 | Lewkowitsch|_J. S. C. Ind._, 1907, p. 1266. | 287.7 | 75.3 | | Edie. |_Quart. J. Inst. Comm. | | | | | Research in Tropics._ |___________|_______|________|____________|_______________________________ _Cohune-nut oil_ is produced from the nuts of the cohune palm, which flourishes in British Honduras. This oil closely resembles cocoa-nut and palm-nut oils and is stated to saponify readily and yield a soap free from odour. The following figures, obtained in the Laboratory of the Imperial Institute, are recorded in the official _Bulletin_, 1903, p. 25:-- ___________________________________________________ | | | | | Saponification | Iodine No. | Melting Point of | | Equivalent. | | Fatty Acids, deg.C. | |________________|____________|_____________________| | | | | | 253.9-255.3 | 12.9-13.6 | 27-30 | |________________|____________|_____________________| _Mafoureira_ or _Mafura tallow_ from the nuts of the mafoureira tree, which grows wild in Portuguese East Africa. The following figures are published:-- ______________________________________________________________________________ | | | | | Saponi- | | | | fication | | Iodine | References. | Equi- | | No. | | valent. | | | |_____________|________________|___________|__________________________________ | | Titre, deg.C. | | | 253.8 | 44-48 | 46.14 | De Negri and Fabris, _Annal. del | | | | Lab. Chim. Delle Gabelle_, | | | | 1891-2, p. 271. | | Acidity | | | | (as Oleic Acid)| | | | Per Cent. | | _Bulletin Imp. Inst._, | 232.8-233.7 | 21.26 | 47.8-55.8 | 1903, p. 27. |_____________|________________|___________|__________________________________ _Pongam oil_, obtained from the beans of the pongam tree, which flourishes in East India, has been suggested as available for the soap industry, but the unsaponifiable matter present would militate against its use. Lewkowitsch (_Analyst_, 1903, pp. 342-44) quotes these results:--