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Technical or Chemical Grade hydrogen peroxide may be used if deionized water To dilute 70% H2O2 to 35% H2O2: Gallon of water needed = (pounds of.

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Answer (1 of 2): Q: How do I go from 10% hydrogen peroxide to 3% hydrogen peroxide? You dilute your solution by a factor of As an example, if you have 1 L of 10% solution (let’s say in water), and want to go to a 3% solution, then 1L * 10\% = X * 3\%, where X is the final volume of your.