ASTM-UOP211:1979 Edition

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UOP211-79 Caustic Solutions Analysis – Liberation Method

Published By	Publication Date	Number of Pages
ASTM	1979	4

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Description

ASTM UOP211-79

Withdrawn Standard: Caustic Solutions Analysis – Liberation Method

ASTM UOP211

Scope

This method is for plant control analysis of used refinery caustic solutions. It is especially useful for solutions containing Merox catalyst used for the extraction or sweetening of mercaptans. Two characteristics of a used caustic solution are determined; namely, total alkalinity and the caustic consumed by the presence of mercaptan. Free sulfur and polysulfide sulfur may interfere with the test. Hydrogen sulfide does not interfere.

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