Chemical How to dissolve gold ore

[joekbit]

Because of the potential energy released, it is not a good idea to cap any reaction unless you know exactly what to expect. Should a reaction vessel fail because of built up pressure, pieces of the vessel and acidic, toxic liquid will be thrown in all directions. The volume of gasses released from even a small amount of sodium hypochlorite can build enormous pressure in an enclosed space. Trying to keep the pressure on the reaction is dangerous to say the least.

I never cap anything tightly,I use saran wrap, it sticks to the glass but yet will easily release any excess pleasure.