Stabilization of hydrogen peroxide with ethylenediamine tetra (methylenephosphonic acid)
Abstract
Abstract AN AQUEOUS HYDROGEN PEROXIDE SOLUTION IS STABILIZED AGAINST DECOMPOSITION BY CONTAMINANTS SUCH AS CATIONS OF IRON, COPPER, MANGANESE, AND THE LIKE, BY ADDITION OF A WATER-SOLUBLE ETHYLENEDIAMINE TETRA(METHYLENEPHOSPHONIC ACID) COMPOUND. THIS STABILIZED HYDROGEN PEROXIDE SOLUTION IS SUBSTANTIALLY LESS CORROSIVE TOWARDS METALS, ESPECIALLY ALUMINUM, THAN PRIOR STABILIZED HYDROGEN PEROXIDE SOLUTIONS. A SYNERGISTIC IMPROVEMENT IN STABILITY COMPRISES COMBINING A WATER-SOLUBLE TIN COMPOUND WITH THE ETHYLENEDIAMINE TETRA(METHYLENEPHOSPHONIC ACID) COMPOUND AND THE HYDROGEN PEROXIDE. THE INCORPORATION OF NITRATE ION INTO THE STABILIZED HYDROGEN PEROXIDE SOLUTION PROVIDES A SOLUTION WHICH IS OF ESPECIALLY LOW CORROSIVITY TOWARDS METALS, PARTICULARLY ALUMINUM, IN COMPARISON WITH HYDROGEN PEROXIDE SOLUTIONS STABILIZED WITH OTHER STABILIZERS IN THE PRESENCE OF NITRATES.
Inventors
- 👤 Kenneth J Radimer
- 👤 Theodore F Munday
Bibliographic Details
Claims Analysis
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