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Is the mixing of store-grade hydrogen peroxide 3% and glycerol in the ratio of 1:2 (V/V) at room temperature affecting the decomposition rate of hydrogen peroxide?

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If you want to ruin both reagents, then you can go ahead and mix them. Hydrogen peroxide oxidizes glycerol to various reagents. A possible reaction pathway can be depicted as follows (Ref.1):

Oxidation of Glycerol

This reaction is catalyzed by transition metals and other substances (Ref.1-3).

References:

  1. G. Wu, X. Wang, T. Jiang, Q. Lin, “Selective Oxidation of Glycerol with 3% $\ce{H2O2}$ Catalyzed by LDH-Hosted Cr(III) Complex,” Catalysts 2015, 5(4), 2039– 2051 (https://doi.org/10.3390/catal5042039).
  2. D. Mandelli, W. A. Carvalho, L. S. Shul'pina, A. M. Kirillov, M. V. Kirillova, A. J. L. Pombeiro, G. B. Shul'pin, “Chapter 19: Oxidation of Glycerol with Hydrogen Peroxide Catalyzed by Metal Complexes,” In Advances in Organometallic Chemistry and Catalysis: The Silver/Gold Jubilee International Conference on Organometallic Chemistry Celebratory Book; A. J. L. Pombeiro, Ed.; John Wiley & Sons, Inc.: New York, NY, 2014, pp. 247– 257 (https://doi.org/10.1002/9781118742952.ch19).
  3. P. McMorn, G. Roberts, G. J. Hutchings, “Oxidation of glycerol with hydrogen peroxide using silicalite and aluminophosphate catalysts,” Catalysis Letters 1999, 63(3-4), 193– 197 (https://doi.org/10.1023/A:101907312).
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    $\begingroup$ Hmm, interesting, I would not think oxidation stops at formic and oxalic acid. $\endgroup$
    – Poutnik
    Jun 11, 2021 at 7:47
  • $\begingroup$ @Poutnik: I was surprized too. But this is s peer-reviewed papar so put my trust on the work. :-) $\endgroup$
    – Mathew Mahindaratne
    Jun 11, 2021 at 14:20

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