Chlorine grenades

[YellowKnight]

Effects - Chlorine grenades will cause eye irritation and slowly hurt your respiratory tract, leading to Oxygen shortage, chlorine exposure would also irritate your skin, lowering your health.

Prevention - This however can be overcomed by wearing clothes (Which your crew should be doing.) and suits, however clothes alone won't prevent your eyes and lungs from getting irritated and damaged, for that you ether need the before mentioned suit or a oxygen mask.

Crafting - Crafting this grenade requires 3 Chlorine and 1 Iron. If you want a good grenade for the Greatest Plan, you need to have a both good medical and weapons skill.
You can also buy this from arms dealers.

PS: Why did i choose chlorine? Well, lithium, potassium and sodium are reactive with water, calcium isn't the greatest option ethier, so chlorine is the only one left.

[Buggy Boy]

How about chlorine could act as a disinfectant bomb to clear a mild husk infection... let it off in water to decrease the chance of infection from a bite while the area is chlorinated.

[sarios]

Well it's a different delivery delivery system from my idea mostly for ballast flora, the bleach sprayer, but it'd definitely do the job.