Originally posted by CafeLotta
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*The evidence for this is the density of the solution. Both citric and glycolic will contribute about 0.02 to SG** at 5% concentration, so there's no room for anything else. There are a few things (like ethanol) that would lower the density of the solution but they are all declarable.
** the density of ternary mixtures is not a linear function of the component densities but you need to delve into statistical thermodynamics to calculate the differences, at these concentrations we can safely ignore them.

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