�� FREE PREVIEW (First 5 Pages) ✔ First 5 pages free to download · No email required · Full document available after purchase This UOP method provides a convenient test for plant control of refinery caustic solutions used to remove hydrogen sulfide, mercaptans, and other weak acids from petroleum products. It’s also applicable to Merox circulating caustic, but results are most significant when correlated with plant experience. The method utilizes two indicators to differentiate between strong and weak bases, offering a practical approach to alkalinity determination. The first five pages are available for free preview.
