Here Is a demonstration of the U.S.P. Acid Test for measuring the extent to which a mineral oil has been freed of unsaturated and aromatic hydrocarbons. As you can see,the concentrated sulfuric acid in contact with Sonneborn's fully refined white mineral oil (left) remains clear and colorless. The oil on the right has turned black — typifying the presence of impurities. With the growing demand for white oils that will consistently meet the high standards required for industry, these and other tests for quality have assumed greater importance. And in the light of industry's increased needs for food grade additives, Sonneborn white oils contribute still another selling feature to your products. Fully refined from carefully selected raw materials, Sonneborn white oils find extensive application in over 250 different
How well does | your oil pass* the acid test •
processes and products. These include plastics manufacture, paper impregnation, rolling oils, cosmetic and drug formulations, meat packing and food processing and many imaginative new uses. Manufacturers and users prefer Sonneborn white oils because of their dependably high purity...good stability to light and heat. ..chemical inertness and resistance to oxidation and sludging... low volatility. . .high dielectric properties... lack of color, odor and taste. Would you like further information? Write today. We'll be glad to send you a copy of Sonneborn's White Mineral Oil Folder and answer any questions you may have. Address White Oil Department W-110. SONNEBORN CHEMICAL AND REFINING CORPORATION Division of Witco Chemical Company, Inc. 300 Park Avenue South, New York, N. Y.
