STABILITY OF HIGH STRENGTH H2O2.
Abstract
A series of stability tests on samples of commerical ('stabilized') 90% and 98% hydrogen peroxide at -60C., -30C., and OC., in Pyrex glass, was completed. It is concluded that present commercial grades of 98% and some commercial grades of 90% hydrogen peroxide, maintained at OC. or below, can be considered stable and storable (decomposition rates below 1=0.5 ppm/day). A detailed analysis of previous studies of the mechanism of catalytic decomposition of hydrogen peroxide was completed, and used to formulate a coherent series of reaction steps for such decompositions. Electron paramagnetic resonance studies were carried out in a rapid flow mixing chamber in order to determine the rate constants for some dozen initiation and propagation reactions of these highly transient intermediate species. Attenuated total reflectance measurements were made on a perfluorosulfonic acid ion exchange membrane exposed to 90% hydrogen peroxide at 70C. Definite attack on the membrane was shown in a two hour period, indicating that not all perfluoro organic compounds are inert to 90% hydrogen peroxide.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1965
- Accession Number
- AD0615036