Accession Number:

ADA222073

Title:

Kinetics of the Chlorine-Alkaline Peroxide Reaction

Descriptive Note:

Final rept. 13 Apr 1988-31 Oct 1989,

Corporate Author:

CALIFORNIA UNIV SANTA BARBARA DEPT OF CHEMICAL AND NUCLEAR ENGINEERING

Report Date:

1990-04-01

Pagination or Media Count:

31.0

Abstract:

This report covers research into the kinetics of the liquid phase reaction between chlorine and basic hydrogen peroxide BHP to produce singlet delta oxygen. The accepted mechanism for this reaction is given in three steps. The second step involves only a proton transfer and is expected to be much faster than the other two steps. The focus of this research was to measure reaction rate constants and k3. Gas absorption measurements of chlorine in BHP in a laminar liquid jet absorber were carried out over the temperature range 1.8 to 8.9 C to determine k1. The experimental data, obtained in the second- order kinetic regime, were interpreted using the penetration theory model. The k1 measured is significantly lower than that estimated from previous work. Gas absorption measurements in a stirred cell absorber determined k3. However, since this third step in the mechanism appears to have such fast kinetics, only a lower bound was determined fore this rate constant. At 0 C, the data indicate that k3 500 ls. JG

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE