Our boiling stones, or boiling chips, or anti-bumping granules are tiny, unevenly shaped pieces of pumice sized between four and six mesh.
Boiling stones are excellent for promoting even boiling in the distillation process because they provide an irregular surface where vapor bubbles can easily form. These bubbles prevent bumping and boiling over.
Always use boiling stones when heating a solvent. Never add them to a solvent which is already hot, because it can cause it to boil over violently. Boiling stones cannot be re-used since the pores inside these stones become filled with liquid on cooling.
RETURN POLICY:
Unopened chemicals in original packaging may be returned within 30 days of shipment with prior approval. Call 800-372-6726. Customers are responsible for shipping costs.
INTERNATIONAL SHIPPING:
Chemicals with hazard fees are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada, unless otherwise stated.
CERTIFICATES OF ANALYSIS:
Certificates of Analysis for chemicals are available upon request. Use our request page at this link
