I have been reading up on thermite and the required ingredients. I have extremely fine aluminum powder from a small etch-a-sketch sitting on plastic wrap in my room. On the comments page of the site i got the thermite ingredients from, multiple people said that thermite could explose if you use too fine of a powder. I have also read that powdered aluminum can become very explosive when it is exposed to air or if it becomes damp. Ive gotten particulary worried because the humidity right now is 93%. So, is powdered aluminum too dangerous to have in house and is too fine powdered aluminum explosive when in thermite?