Chemware D1069103 PTFE Boiling Stones, 450 Grams
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<b>[Product Information]</b><br>
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<li>Ultra-pure, virgin PTFE chips promote gentle, efficient boiling and help to prevent superheating, even of highly volatile liquids</li>
<li>Resistant to almost all chemicals</li>
<li>Ideal for boiling organic liquids</li>
<li>Won't scratch glassware</li>
<li>Usable up to 500F</li>
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