Stabilization of concentrated hydrogen peroxide solutions

Details Stabilization of concentrated hydrogen peroxide solutions Stabilization of concentrated hydrogen peroxide solutions

1990-07-17

1992-07-14

Kyle, Deborah L.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

25218629, 423272, 423273, 558190, C01B 15037

Patent

active

051300532

ABSTRACT:
Concentrated solutions of hydrogen peroxide tend to decompose on storage, thereby losing their effectiveness, amongst other reasons by virtue of interaction with contaminating transition metals.
Peroxygen compounds are stabilized by contact with a stabilizing amount of compound of general formula: ##STR1## in which X represents a methylene phosphonic acid group of formula --CH.sub.2 --(--PO.sub.3 H.sub.2) or salt thereof, R represents a tetra methylene diradical, optionally alkyl-substituted, that completes a cyclo-aliphatic ring and thereby establishes the two NX.sub.2 groups in a substantially fixed configuration and Y represents a hydrogen or lower alkyl group.
Preferably, the solutions contain additionally one or more co-stabilizers, including stannate, phosphates, hydroxybenzoic acid, citric acid and nitrate.
The stabilizer system can enable the solution to be diluted, even with municipal water.

REFERENCES:
patent: 3387939 (1968-06-01), Reiley
patent: 3701825 (1972-10-01), Radimer
patent: 3740187 (1973-06-01), Kowalski
patent: 3903244 (1975-09-01), Winkley
patent: 4059678 (1977-11-01), Winkley
patent: 4155738 (1979-05-01), Boghosian
patent: 4304762 (1981-12-01), Leigh
patent: 4320102 (1982-03-01), Dalton, Jr. et al.
patent: 4614646 (1986-09-01), Christiansen
patent: 4725281 (1988-02-01), Stehlin et al.
patent: 4770808 (1988-09-01), McDonogh et al.

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