Rubber Stopper, #6.5, solid

These 250 ml glass Erlenmeyer flasks can be heated directly in an open flame. Essential for chemistry labs!

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Pack of two test tubes.

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This borosilicate glass thistle tube is useful for a variety of experiments, including osmosis and diffusion.

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This ring is designed to support beakers, flasks, etc. on a ring stand.

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These # 6.5 rubber stoppers are 27-34 mm diameter with two 5 mm diameter holes.

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5mm glass tubes fit in all rubber stoppers & attach to 4.8 mm plastic or rubber tubing.

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This high-grade denatured ethyl alcohol is a great fuel for all of our alcohol burners and alcohol lamps! This 16 oz alcohol fuel bottle is 90% ethyl alcohol with denaturants added, making it unfit for human consumption.

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A 2' section of flexible rubber tubing.

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Our large-size watch glasses have a slight depression, which makes them useful whenever a shallow vessel is required for a refraction surface.

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Use this universal clamp to set up complex chemistry distillations or support laboratory equipment.

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