PTFE Boiling Stones

Stones promote gentle, efficient boiling by creating many projections on which small bubbles can form. They are unaffected by boiling acids, hydrocarbons, ketones, esters, alcohols, or alkalis in any concentrations. Ultra-pure, virgin PTFE chips. Ideal for continuous extraction methods, such as EPA SW846. Suitable for column packing. Supplied in a 450g bottle.