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  • SEOH Magnetic Stir Bar Octahedral 1 x 5/16 new
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by SEOH

SEOH Magnetic Stir Bar Octahedral 1 x 5/16 new

14 customer reviews

Price: $3.62 & FREE Shipping
Only 10 left in stock.
Ships from and sold by Scientific Strategies.
3 new from $3.55

Specifications for this item
Brand Name SEOH

These 1" x 5/16" magnetic stir bars come encapsulated in FDA approved PTFE with Alnico V magnet c... Read full product description



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Product Features

  • Dimensions in Inches (length x diameter) 1" x 5/16"
  • Dimensions in mm 25x8
  • Inner Material Alnico V Magnet
  • Outer Material Inert PTFE Coating
  • Sold As Each

Product Details

  • Shipping Weight: 1.6 ounces (View shipping rates and policies)
  • ASIN: B001ACM0O6
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (14 customer reviews)
  • Amazon Best Sellers Rank: #10,694 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
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Frequently Bought Together

SEOH Magnetic Stir Bar Octahedral 1 x 5/16 new + SEOH Magnetic Stir Bar Octahedral 1 1/2 x 5/16 new + SEOH Magnetic Stir Bar Octahedral 2 x 5/16 new
Price for all three: $13.03

Buy the selected items together

Product Description

These 1" x 5/16" magnetic stir bars come encapsulated in FDA approved PTFE with Alnico V magnet cores. They are nicely polished to reduce pick-up and cross contamination and can be sterilized using thermal or chemical means. To prevent demagnetization please do not store bundles of random stir bars together, do not drop on hard (especially steel) surfaces, and try to store in identical pairs. A couple of recommendations for choosing stir bars....stirring is most effective when the distance between the poles in the drive magnet (in the stirrer) is most similar to the length of the stir bar. Also, the closer the proximity of the drive magnet (in the stirrer) to the stir bar, the more advantageous. The pictured stir bar is exactly what you recieve. See specifactions below for more details. ALL OUR STIR BARS SHIP FOR FREE!

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

1 of 1 people found the following review helpful By Chops on April 27, 2014
Verified Purchase
Great little stir bar. BTW, it's white teflon coated, not tan as shown in their photo. I really like the spin ring on the center of the bar. It makes the spinning very stable. This bar creates a huge vortex in my 2L flask! So glad I went with this smaller bar and not the 1 1/2" one.
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1 of 1 people found the following review helpful By Justin Beasley on August 12, 2013
Verified Purchase
Small size, fits in my smallest erlenmeyer flask and works flawlessly. I'm not sure how it could be better but it works and that's all I need it to do.
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1 of 1 people found the following review helpful By Lynn Osti on January 1, 2014
Verified Purchase
This magnetic stir bar creates a vortex with no problem and gets the job done right. I highly recommend this product.
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By John F Kilpatrick on January 16, 2013
Verified Purchase
I bought a used Corning 171 student magnetic stirrer to stir water. It did not come with a stir bar. I read that stirrers work best with a stir bar that is the same length as the magnet in the stirrer. I used a metal object and determined that the internal magnet was about 1 inch long. Maybe slightly longer. I bought this and a 1 1/8 inch stir bar. I think thelonger one works slightly better but they are both fine.
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Verified Purchase
These Magnetic Stir bars are okay if you are stirring liquids that are thin like water.
When I add the dry powder dye to the water a lot of times the magnet gets tossed off of its rotation, and then it is hard to get it back to spinning again.
Over all it is a good product. It just did not work for what I needed.
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By Marc Mitchell on March 5, 2015
Verified Purchase
I bought 2 of these stir bars for to create yeast starters for my home brew. I gave one of them to my fellow brewer and he had difficulties with the stir bar creating a vortex on his stir plate... which i found odd because i used my stir bar a week earlier and had no issues with it creating a vortex.
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By DRC on March 4, 2015
Verified Purchase
These may be good in some situations, but using in a 2000 ML flask was problematic as it kept throwing and was very noisy. I sanded off the flats and it did much better and made a lot less noise.
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