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__________|________| | | | | | 280.2 | 5.24 | 52.5 | |________________|___________|________| The seeds of the "tallow tree" yield an oil (stillingia oil) having drying properties. _Borneo Tallow._--The kernels of several species of _Hopea_ (or _Dipterocarpus_), which flourish in the Malayan Archipelago, yield a fat known locally as Tangawang fat. This fat is moulded (by means of bamboo canes) into the form of rolls about 3 inches thick, and exported to Europe as Borneo Tallow. A sample tested by one of us gave the following data:-- ___________________________________________ | | | | | Saponification | Acidity | Titre, | | Equivalent. | (as Oleic Acid) | deg.C. | | | Per Cent. | | |________________|_________________|________| | | | | | 292 | 36 | 50.8 | |________________|_________________|________| _Kapok oil_ is produced from a tree which is extensively grown in the East and West Indies. The Dutch have placed it on the market and the figures given by Henriques (_Chem. Zeit._, 17, 1283) and Philippe (_Monit. Scient._, 1902, 730), although varying somewhat, show the oil to be similar to cotton-seed oil. VARIOUS NEW FATS AND OILS SUGGESTED FOR SOAP-MAKING. _Carapa_ or _Andiroba oil_, derived from the seeds of a tree (_Carapa Guianensis_) grown in West Indies and tropical America, has been suggested as suitable for soap-making. Deering (_Imperial Institute Journ._, 1898, 313) gives the following figures:-- ____________________________________________ | | | | | Saponification | Acidity | Melting Point | | Equivalent | Per Cent. | of Fatty | | | | Acids, deg.C. | |________________|___________|_______________| | | | | | 287 | 12 | 89 | |________________|___________|_______________| Another observer (_Rev. Chem. Ind._, 13, 116) gives the setting point of the fatty acids as 56.4 deg. C. _Candle-nut oil_ obtained from the seeds of a tree flourishing in India and also the South Sea Islands. The following figures have been published:-- _____________________________________________________________________________ | | | | | | Saponi
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