______________________________________________________________________ | | | | | | | | | Specific | Saponi- | Acidity | | Refractive | | | Gravity | fication | (as Oleic | Titre, | Index at | | | at 15 | Equi- | Acid) | deg.C. | 20 deg. C. | | | deg. C. | valent | Per Cent. | | | |____________|___________|___________|___________|________|____________| | | | | | | | | Commercial | 0.9184 | 298 | 2.6 | 28.6 | | | Refined | 0.9205 | 285 | 0.22 | 24.0 | 1.4712 | |____________|___________|___________|___________|________|____________| Arachis oil should absorb 90 to 98 per cent. iodine. _Maize Oil._--America (U.S.) produces very large quantities of maize oil. Typical samples of crude and refined oil gave these figures:-- ______________________________________________________________________ | | | | | | | | | Specific | Saponi- | Acidity | | Refractive | | | Gravity | fication | (as Oleic | Titre, | Index at | | | at 15 | Equi- | Acid) | deg.C. | 20 deg. C. | | | deg. C. | valent | Per Cent. | | | |____________|___________|___________|___________|________|____________| | | | | | | | | Crude | 0.9246 | 294 | 1.41 | 15 | | | Refined | 0.9248 | 294.1 | 0.40 | 17.2 | 1.4766 | |____________|___________|___________|___________|________|____________| Maize oil should absorb 120 to 128 per cent. iodine. _Sesame Oil._--Sesame oil is very largely pressed in Southern France from the seeds of the sesame plant which is cultivated in the Levant, India, Japan and Western Africa. A fairly representative sample of French expressed oil tested:-- ____________________________________________________________________ | | | | | | | Specific | Saponification | Acidity | Titre, | Refractive | | Gravity at| Equivalent. | (as Oleic Acid) | deg.C. | Index at | | 15 deg. C.| | Per Cent. | | 20 deg. C. | |___________|________________|_________________|________|____________| | | | | | | | 0.9227 | 295.2 | 1.84 | 22.8 | 1.4731 | |___________|________________|_________________|________|____________| Sesame oil should absorb 108 to 110 per cent. iodine.