Solution used in Doctor's treatment for the removal of mercaptans is_________________?
Correct answer: B. Sodium plumbite
- A. Sodium hydroxide
- B. Sodium plumbite
- C. Cupric chloride
- D. Potassium isobutyrate
Explanation
Doctor sweetening uses sodium plumbite, usually with elemental sulfur, to convert reactive mercaptans into less objectionable disulfides. Sodium hydroxide is associated with extraction processes rather than the traditional Doctor treatment.
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