This ain't no ordinary blast powder. Look at the tiny silver crystals. And the distinct smell! Why it's clear as daylight that this is Seaforium Powder. Seaforium is harmless enough. But once it's wet it could blow Ironforge out of the mountain.
The chemical reaction can be defused by mixing four components: lurker venom, crushed Mo'Grosh crystal, a crocolisk tear and this disarming colloid. Now tell Hinderweir before it's too late!