Mercaptan of Toluene
Mercaptan of toluene is quantified by adding 2-propanol and 0.1 mol/L sodium acetate/ethanol to sample liquid followed by titration 0.025 mol/L silver nitrate/2-propanol. The endpoint is the maximum inflexion on titration curve.
Concentration of mercaptan is calculated from titration volume of silver nitrate.
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