That was what I was referring to as the doping compound. However the Doping compound on the Hindenburg was cellulose acetate butyrate mixed with aluminum powder of which is not a flamable compound. The source of this rumor comes from a rocket scientist referring to the usage of the aluminum powder often used in solid fuel rockets.

https://www.airships.net/hindenburg-paint/

That was what I was referring to as the doping compound. However the Doping compound on the Hindenburg was cellulose acetate butyrate mixed with aluminum powder.

That was what I was referring to as the doping compound.