This illustrates a point though. TATP you could synthesize on a plane is entirely inadequate to bring down a plane. It also requires a bit more than acetone and hydrogen peroxide. Pan Am 103 required around half a kilo of RDX and TATP is very, very far from RDX.

The idea of synthesizing a proper high-explosive in an airplane lavatory is generally comical. The chemistry isn’t too complex but you won’t be doing it in an airplane lavatory.