dry powder burns spontanewsly----

[arthur kierski]

i have a powder (gold powder) that after dried ,burns spontaneosly--the powder was cenented with iron sponge-------what powder is mixed with the gold powder?thanks for answer

 

[Lou]

It's the iron.

I'd put it all in 1:1 muriatic and water.

 

[arthur kierski]

Dear Lou---thanks for the answer--- i am teachig my son,and i am kind of rusty----yours
Arthur Kierski