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Seller: avogadroslabsupply (23,740) 99.7%, Location: Vincentown, New Jersey, Ships to: Worldwide, Item: 330357743694 International Buyers – Please Note: Customs and brokerage fees, import duties and taxes are not included in the item price or shipping cost. These charges are your responsibility. Please check with your country's customs office to determine what these additional costs will be prior to buying. Avogadro's Lab Supply Alumina Boiling Stones 250 g Offered here is a 250 g container of aluminum oxide (Al2O3) granules. The innumerable sharp projections of each granule increases the surface area on which vapor bubbles can form. This promotes a gentle stream of bubbles rising to the surface. Highly effective in controlling distillation of liquids with low boiling points. Good in all boiling operations, except those with strong alkalis, or concentrated sulfuric acid. Boiling stones should be used sparingly! 1-5 in a test tube or 10-15 in a distillation flask. All merchandise offered by Avogadro's Lab Supplyis New from the manufacturer! Don't forget to visit my for great deals on all your lab supply needs!!! Condition: New, Brand: Walter Stern, MPN: 503

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