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UOP163 Hydrogen Sulfide And Mercaptan Sulfur In LPG
the liquid hydrocarbon sample pipetted into isopropyl alcohol containing a small amount of ammonium hydroxide. the solution is titrated potentiometrically with alcoholic silver nitrate using a glass refrence and silver-silver sulfide indicating electrode system.hydrogen sulfide and mercaptan sulfur concentrations are calcalated as mass-ppm. free sulfur complicates the potentiometric curve,and instructions are given for interpreting the curve when free sulfur is present, the presence of free sulfur is reported with the results.
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ASTM D4377 Crude Oil Karl Fischer Titration
A knowledge of the water content of crude oil is important in the refining, purchase, sale, or transfer of crude oils.
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