Kinetic study of the reaction of carbon disulfide and basic compounds

Abstract

The reaction of carbon disulfide and basic compounds, including potassium hydroxide (KOH), tetrabutylammonium hydroxide (QOH), and tertiary amine (TBA ), to form CS2-X in a homogeneous solution was studied. A UV detector was used to measure these reactions. The concentration of the active intermediate CS2-X (X: basic compounds), which was not purified from the solution, was measured using a UV instrument. It is found that the reactions did not follow a pseudo first order rate law when potassium hydroxide or tetrabutylammonium hydroxide was used as the basic compound. Nevertheless, a pseudo first order rate law is proposed to describe the kinetics of reactions involving carbon disulfide and tertiary amine. In the reaction of carbon disulfide and tertiary amine, the rate constant of the forward reaction (k1) was obtained through UV absorbance of the product. The effects of organic solvents, temperature, and the concentration of the reactants on the rates of reactions were investigated.