Volume strength is a dimensionless quantity defined to express the concentration of hydrogen peroxide in a water/hydrogen peroxide (H2O/H2O2) system. Volume strength refers to the volume of oxygen gas liberated from a unit volume of a H2O/H2O2 mixture [1-4].
Other terms for volume strength are volume strength ratio, volume percent and volume concentration. Although not commonly seen in the modern literature, these terms and associated values are still of interest while evaluating and comparing property data of H2O/H2O2 compositions. In addition, they are instructive in handling & safety considerations by allowing to project the maximum amount of possible oxygen gas evolution from a given amount of a H2O/H2O2 mixture with known composition.
References and further reading
[1] Drefahl, A. From H2O2 volume strength to mass fraction and vice versa. axeleratio.com, 2022. URL: http://www.axeleratio.com/chem/conc/H2O2_volume_strength.pdf.
[2] H2O2 Equivalent Values of Concentration. USP technologies™. URL: https://www.h2o2.com/technical-library/physical-chemical-properties/physical-properties/default.aspx?pid=13&name=Equivalent-Values-of-Concentration.
[3] Hydrogen Peroxide Safety & Handling. Technical Data Sheet. Solvay Chemicals, Inc., 2019. URL: https://www.solvay.com/sites/g/files/srpend221/files/2019-10/H2O2%20Safety%20and%20Handling%20of%20Hydrogen%20Peroxide.pdf.
[4] Reichert, J.S. and Hull, H. G. Control of pH in Peroxide Solutions. Ind. Eng. Chem. Anal. Ed. 11 (6), 311-314, 1939. DOI: 10.1021/ac50134a005.
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