Teflon Boiling Stones 

These ultra pure TFE boiling stones, or chips as they are sometimes called, promote gentle, efficient boiling, even of highly volatile liquids, and minimize bumping during reflex and distillation. They are ideal for continuous extraction methods (i.e., EPA SW846). They are not affected by boiling acids, hydrocarbons, ketones, esters, alcohols or alkalies. Easily cleaned and non contaminating, TFE boiling stones show no trace of acidity or alkalinity and leave no powdery residue.

Boiling stones have the complete chemical inertness of TFE. They effectively promote gentle efficient boiling by having many projections on which small bubbles can form. Thus, small amounts of vapor are released at many places on the bottom of the flask or test tube, preventing super heating, with its erratic and undesirable “bumping” vaporization.

Boiling stones speed distillations and make possible sharper separations in distillations. They are also useful in evaporations, extractions, refluxing, condensations and other boiling operations, and prevent losses due to flask breakage.

Our stones are rregular shapes that vary between 3mm and 8mm 

Sold as: Plastic jar containing 450 Grams