METHOD FOR STABILIZING ACIDIC AQUEOUS HYDROGEN PEROXIDE SOLUTION CONTAINING COPPER

PURPOSE:To effectively prevent the decomposition of hydrogen peroxide in an acidic aq. hydrogen peroxide soln. contg. Cu ions by adding a small amt. of a specified arom. amino acid to the soln. CONSTITUTION:An amino acid having an arom. ring represented by the formula (where !W is an arom. group, pr...

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Hauptverfasser:	MIYASHIRO YOKO, ITANI KATSUTOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
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creator	MIYASHIRO YOKO ITANI KATSUTOSHI
description	PURPOSE:To effectively prevent the decomposition of hydrogen peroxide in an acidic aq. hydrogen peroxide soln. contg. Cu ions by adding a small amt. of a specified arom. amino acid to the soln. CONSTITUTION:An amino acid having an arom. ring represented by the formula (where !W is an arom. group, preferably phenyl, oxyphenyl or indole), e.g., tyrosine or phenylalanine is added to an acidic aq. hydrogen peroxide soln. contg. Cu ions and having 10-150g/l concn. of H.0. and 10-200g/l concn. of an acid, usually sulfuric acid to stabilize the soln. The amt. of the amino acid added is about 0.01-50g/l, preferably about 0.1-10g/l.
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subjects	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
title	METHOD FOR STABILIZING ACIDIC AQUEOUS HYDROGEN PEROXIDE SOLUTION CONTAINING COPPER
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