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Use rubber stoppers and also lab-grade corks come contain liquids in check tubes and also flasks

Keep your chemistry experiments clean and also safe with rubber stoppers! this sturdy plugs fit tightly into test pipe or flasks to prevent chemical leaks and also spills.

You are watching: What are rubber stoppers used for

Some lab work-related requires a full setup the glassware. You’ll require one- or two-hole rubber stoppers because that those experiments, and use 5 mm glass tubingto connect to other apparatus.

For little test tubes usage #00 stoppers. Use #0 for big test tubes, and also #1 because that extra large. Usage #6.5 stoppers because that 250 ml flasks. Use a cork borer to drill holes in the corks.

And usage our rapid & easy overview to determine which size of rubber stopper you need.


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