Abstract
Fundamental conditions for the spectrophotometric determination of di-iso-propylamine dichloroacetate by the method of nitrosation have been investigated. Glacial acetic acid and sodium nitrite solution are added to the sample solution at 4060°C, and di-iso-propylamine is nitrosated to N-nitroso-di-iso-propylamine. After cooling, the reacted solution is made strongly alkaline with an excess of potassium hydroxide solution and extracted with cyclohexane. By measuring the absorbancy at 235mμ of the extracted solution, DADA can be determined. Beer's law is obeyed in the range of 5200γ of DADA with high reproducibility.
