What is the collective noun of gunpowder?

There isn't a commonly used collective noun specifically for gunpowder.

While we have terms like "a flock of birds" or "a herd of elephants," gunpowder is typically referred to in terms of its quantity (e.g., a barrel of gunpowder, a pound of gunpowder).

If you're looking for a more poetic or evocative term, you could use something like:

* A blast of gunpowder

* A charge of gunpowder

* A cloud of gunpowder

Ultimately, the best term depends on the context and the specific effect you want to achieve.