Glass Stirring Rods 200mm

SKU: 55616

Starting from $4.00USD Each

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EACH $4.00 $4.00 /Unit
Box of 10 $30.25 $3.03 /Unit
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[4.5]   2 Reviews    | Write a Review

Heavy duty glass stirring rods 200mm (8") x 6mm (~1/4") thick for mixing. Rods are made of heat resistant borosilicate glass and can even be used in boiling water; dishwasher of course. 

Stir rods help decant supernatants by reducing attraction between the sides of a beaker or flask so that the liquid pours with minimum spillage. A borosilicate glass stirring rod is hard enough to scratch the inside wall of a flask, test tube or beaker & aid in crystallization.

Out of Stock Until: 2025-03-01
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Glass stirring rods can demonstrate the optical property known as index of refraction, i.e. how light bends. The best known example is sunlight or white light dispersed into a rainbow of colors by a triangular prism. This effect can be seen in liquids as well. Place the rod in a beaker holding water & notice the slight change in position from above & below the water. Then try it with oil instead. The index of refractive of oil is the very close to that of the glass & the immersed portion of the rod disappears!

Reviews (2)
2023-01-11

Received the single rod I expected, with the measurements as described. Students enjoying this inexpensive tool to learn about refraction.

— M.
— Indigo:

Very interesting. Who but a teacher would have thought strirring rods are a natural complement to prisms?

2021-11-16

it's not 6 stir rods at 200mm, it's one at 200mm. other than the wrong description, stir rods are good

— Francisco
— Indigo:

6x200mm describes diameter by length. I suppose we could say 6mm x 200mm but no one has misunderstood up until now.

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