| YuriP |
There's no clarification so it will depend from your GM interpretation.
IMO I would add even not having Alchemical trait in the feat. Because you are still using an alchemical items to load your weapon so I may consider it as part of the strike and isn't like this would break the game balance. Your attack won't be so much stronger due this. Also this meats very well the Burn It! Goblin fantasy.