CONTENTS - Preface - PART 1. THE PETROLEUM ACIDS - 1. Introduction - 2. Early Investigations 12 - 3. Availability and Methods of Isolation of Naphthenic Acids 17 - 4. Distribution and Concentration of Acids III Petroleum 39 - 5. Purification of Petroleum Acids 45 - 6. Analytical Methods 51 - 7. Methods of Separating Petroleum Acids 59 - 8. Characterization of Petroleum Acids - 9. The Structure of Petroleum Acids 93 - 10. The Hexahydrobenzoic Acid Problem 110 - 11. Salts and Derivatives of Petroleum Acids 115 - 12. Phenols 120 - 13. The Aliphatic or Fatty Acids 136 - 14. von Braun's Study of the Properties and Reactions of Naphthenic Acids 144 - 15. von Braun's Study of Roumanian Petroleum Acids 155 - 16. The Structure of von Braun's Ketone 166 - 17. Bicyclic, Polycyclic, and Aromatic Acids 189 - 18. Recent Studies on Naphthenic Acids 198 - Chichibabin's Work on Baku Acids ; Various Minor Studies on Eurasian Acids ;Nenitzescu's Studies on Roumanian Acids ;Work at the University of Texas ; Gas-Well Acids - 19. The Origin of Petroleum Acids 236 - 20. Utilization of Naphthenic Acids 246 - PART II. THE PETROLEUM BASES - 21. Introduction 281 - 22. Nitrogen in Petroleum 283 - Analysis ; Isolation ; The Nonbasic Compounds in Petroleum - 23. Separation of Basic Compounds 302 - 24. Early Investigations 316 - 25. Investigations at the University of Texas 324 - 26. Cracking-Process Bases 342 - 27. The Origin of Petroleum Nitrogen Compounds 348 - 28. Uses of Petroleum Bases 356 - Index 361 -