- Prills are Ammonium Nitrate
- Great for endothermic experiments
Legal Disclaimer: We assume no responsibility for the misuse of this product.
Details: DIY cold packs. Bulk prill which activate when mixed with water. Place both in zip lock back of your choice (sold separately). For your personalized cold pack. (May contain bits of debris, will not affect performance.) DOES NOT SHIP INTERNATIONALLY OR TO HAWAII OR ALASKA