Exploding plastic bottles: I would like to ask about the demonstration of HCl and Al within a plastic bottle which explodes when the level of hydrogen gas builds up.

Exploding plastic bottles: I would like to ask about the demonstration of HCl and Al within a plastic bottle which explodes when the level of hydrogen gas builds up.
Disposal of products of sodium thiosulfate and hydrochloric acid: Risk assessment (thio
Sulfur disposal: Could you please advise on the procedure for disposing of sulfur, specifically sulfur mixed with iron filings and HCl.