Phifsical and CJiemical Papers. 75 



for proper hydrogenation. After the hydrogenation is ef- 

 fected the mixture is pumped into a tank, heated by steam, 

 then conducted to a filter press, where the catalyzer is re- 

 moved by filtration and the oil permitted to harden. I present 

 here a specimen of the hydrogenated corn oil, made from one 

 pint of corn oil. This product was kindly prepared for me 

 especially, from authentic material (furnished by myself) by 

 Procter & Gamble. The fusing point of the product is between 

 60 and 65 C. Comparing this with the fusing points of other 

 fats. I would say that prepared suet has a fusing point of 45" 

 to 50 , spermaceti from 50.5 to 53.5' C, and beeswax from 

 62 to 64 C. It has a comparatively tough structure, but by 

 no means as tough as that of wax ; much more so, however, 

 than spermaceti. The odor, if it has any, is rather agreeable. 



Experiments will be performed in the future as to the utility 

 of this product in various applications. 



We now have a student, Mr. Donald H. Lackey, working on 

 the problem of hydrogenation. Mr. Lackey, in his work, will 

 construct an apparatus for the purpose of the hydrogenation 

 of oils, to be used in laboratory experimentation. 



It may be said that hydrogenated corn oil, when suitably pre- 

 pared, is a product which has the faculty of improving cotton- 

 seed oil, or similar hydrogenated oils, which tend to granulate. 



The process of hydrogenation has become of such general 

 interest to the various industries that numerous patents have 

 been taken out for the process. Attention should be called, in 

 this connection, to a valuable publication of recent date, the 

 title of which is "The Hydrogenation of Oils, Catalysis, Cata- 

 lyzers and the Generation of Hydrogen," by Carleton Ellis, 

 published by D. Van Ostrand Company. 



Experiments as to the drying quality of corn oil prove the 

 following : 



DRYING TESTS. 



Lindseed oil film dries on glass in 3 days. 



Corn oil and lindseed oil, equal parts . . . film dries on glass in 7 days. 

 Corn oil, pure film dries on glass in 14 days. 



At the end of 14 days corn oil leaves a rather dry, not hard, 

 film, rather fatty in character. 



Note. — In a recent issue of the Journal of Industrial Engineering 

 Chemistry, in an article on the hydrogenation of various oils it is shown 

 that the degree of hydrogenization modifies, as one would expect, the 

 consistency and fusing point of the product. 



