Products / Boiling Stones
Teflon Boiling Stones
Ultra-pure, virgin PTFE chips promote gentle, efficient boiling and help prevent superheating, even of highly volatile liquids. Ideal for continuous extraction methods, such as EPA SW846. These chips are not affected by boiling acids, hydrocarbons, ketones, esters, alcohols or alkalies. They are easily cleaned and non-contaminating. They will not scratch or abrade glassware and leave no powdery residue. Saint-Gobain
Hengar Granules
Hengar granules used for the prevention of bumping in Kjeldahl distillation. These smooth boiling granules effectively prevent bumping and super-heating of boiling liquids. When granules are placed in a liquid, boiling proceeds constantly and quietly. Any gases formed in the liquid are swept out rapidly and completely. High purity, white amphoteric alundum granule. Extremely hard porous surface. Will not crumble or "powder". Ten mesh granule size. Selenized granules are specially treated[…] Troemner
Boiling Stones, Fused Silica
Insoluble and porous, Cargille Boiling Stones are excellent as catalyst and reagent carriers for analytical procedures and production processes. Porous grainy structure insures a "myriad of sites for ebullience", not just corners. Large contact area that cannot be worn smooth and light weight promotes stirring action and heat distribution. Cargille Boiling Stones are recommended for Kjeldahl, Folin-Wu and other procedures where superheating may occur. If trace alkalinity is a concern,[…] Cargille