PTFE Resin Boiling Stones Minimize Superheating; Won't Scratch Glassware
Even highly volatile liquids boil gently and efficiently with ultra-pure, virgin PTFE Resin Boiling Stones. Ideal for continuous extraction methods. Minimize “bumping” during reflux and distillation. Used with slow dry concentration tubes. Resistant to almost all chemicals. Not affected by boiling acids, hydrocarbons, ketones, esters, alcohols or alkalies. No trace of face acidity or alkalinity. Won't scratch or abrade glass. Leave no powdery residue. Usable up to 550°F (288°C).