Determination of thioureas by reaction with phenacyl bromide.
Thioureas react quantitatively with phenacyl bromide in ethanolic solution to give hydrobromides of aminothiazoles/iminodihydrothiazoles which can be titrated with sodium carbonate, Thymol Blue being used as indicator.
Khanna
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School of Studies in Chemistry, Vikram University, Ujain, 456010, India.
Boparai
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KS