Yes, much easier to just buy H2SO4 I guess. I don't buy chemicals, not that into this sorta thing but it does interest me, must say. A-Level chemistry is tempting. In High School (English) we all are a little obsessed with blowing stuff up. We never get to ourselves but have indeed watched teachers blow stuff up which is fun. Y'know, fun experiments like methane bubbles and stuff. In blowing stuff up... can't remember any chemicals offhand. And wow, I've REALLY digressed.