CBD > THC isomerization using phosphorus pentoxide

It may be so but i saw a lot of mystery peaks elute way before the main cannabinoids on the chromatogram and i can only explain it like this that they are shreded to different components.

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Oh also! Recently found out that phosphoric acid (known acid to convert) contains like 60% of phosphoric pentoxide, that it’s not one molecule H3Po4 (phos acid), so this way is not so bad idea after all.