CONTENTS - 

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 -