Reducing adapters have a larger joint at the bottom than at the top. They enable you to use different sized pieces of organic glassware in your laboratory activities. Ground glass joints allow pieces to be assembled leak-free without stoppers.
Organic chemistry glassware. Reducing adapters have a larger joint at the bottom than at the top. They enable you to use different sized pieces of organic glassware in your laboratory activities. Ground glass joints allow pieces to be assembled leak-free without stoppers. Instructions and illustrations for setting up organic glassware for a variety of procedures, such as reflux and simple vs. fractional distillation, are available in the PDF above under Resources.
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Organic Chemistry Glassware Set