Storage of
unspecified inorganic acids... and they appear to be incompatible for storage with most things.
Adding dilute phosphoric acid to toluene does not present a reactivity hazard.
This chart needs some context. It also appears to indicate that it's somehow safe to store molten sulfur with caustics and halogens with alkene oxides so I'd be tempted to suggest it's not something entirely to be relied upon. It's beyond basic.
Here's another, more comprehensive chart that shows non-oxidizing mineral acids (like phosphoric acid) as being compatible with aromatic hydrocarbons (like toluene):
βThere is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
β Jacques Bergier, quoting Fulcanelli