Black Powder Question

[MikeArthur]

I would like to know the temperature at which my Goex 3f powder will ignite. I keep it in a document safe that says

"After being subjected to temperatures of 1832°F for one and two hours, our safes exceeded industry standards by maintaining an internal temperature below 350°F." (paper ignites at just over 400 degrees)

hopefully for black powder it's less than 350 degrees?

thanks in advance everyone!!!

yours,

Mike Arthur, 7815
Charleston, SC
Hart's Battery, CSA
843 412-1992

[Lou Lou Lou]

For what its worth, paper ignites at 451 degree farenheit.