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US 4,304,762 AGranted
Stabilization of hydrogen peroxide
AssigneeLever Brothers Company
InventorArthur G. Leigh
Life of this patent
Estimating the term…
Abstract
Effective stabilization of aqueous hydrogen peroxide solutions is achieved by the addition of a stabilizing phosphonate compound of the general formula: ##STR1## wherein n=1-4; and X=H or a water-soluble cation. The stabilizing phosphonate compound is particularly effective for use with alkaline hydrogen peroxide solutions.
Claims5
An aqueous hydrogen peroxide solution having a pH of about 7 stabilized against decomposition, containing a phosphonate compound of the following general formula:
- ##STR4## wherein n=1-4;
- and X is H or a water-soluble cation, selected from the group consisting of alkali metals, ammonium, substituted ammonium and alkaline earth metals, said phosphonate compound being present in an amount of 0.01 to 10% by weight of the hydrogen peroxide in the stabilized hydrogen peroxide solution.
Dependencies are inferred from the claim text.