Stabilization of hydrogen peroxide

Claim 1

IN A PROCESS FOR STABILIZING HYDROGEN PEROXIDE BY ADDING A WATER-SOLUBLE STANNATE OF THE GROUP CONSISTING OF THE ALKALI AND ALKALINE EARTH METAL AND AMMONIUM STANNATES IN AN AMOUNT EQUIVALENT TO ABOUT 0.5 TO ABOUT 200 MILLIGRAMS OF SODIUM STANNATE PER LITER OF STABILIZED PEROXIDE, THE IMPROVEMENT WHICH COMPRISES. FORMING AN AQUEOUS SOLUTION OF SAID STANNATE IN WHICH THE CONCENTRATION OF STANNATE CALCULATED AS NA2SN(OH)6 IS ABUT 0.05% TO ABOUT 10% BY WEIGHT. POLYMERIZING SAID STANNATE TO A SOLUBLE POLYMERIC FORM IN THE SUBSTANTIAL ABSENCE OF CHELATING AGENT FOR TIN, ADDING TO THE AQEUOUS SOLUTION OF POLYMERIC STANNATE A CHELATING AGENT FOR TIN WHICH IS SOLUBLE IN SAID SOLUTION AND STABLE IN THE HYDROGEN PEROXIDE BEING STABILIZED IN A MOLE RATIO OF CHELATING AGENT TO TIN OF ABOUT 0.5:1 TO ABOUT 20:1, ACIDIFYING THE SOLUTION OF COMPLEXED POLYMERIC STANNATE TO AN AQUEOUS EQUIVALENT PH BELOW 5, USING THE RESULTING STABLE ACIDIC SOLUTION OF POLYMERIC STANNATE TO EFFECT SIMULTANEOUS STABILIZATION AND ADJUSTMENT OF THE PH OF THE HYDROGEN PEROXIDE TO ABOUT 0 TO 5.