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ULAB Scientific Erlenmeyer Flask with Blue Screw cap, Vol.500ml, 3.3 Borosilicate with Printed Graduation, Pack of 2, UEF1020
The ULAB Scientific Erlenmeyer Flask are made of borosilicate glass 3.3, Compliance with ISO 4796 Laboratory Glassware-bottle which has Minimal thermal expansion.
Widely used in laboratory or kitchen. It is Suitable for general purpose laboratory applications, such as storage, sample preparation, transport, autoclaving media. It is great for lab and home school science experiments(Chemistry, Physics, Biology).
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Mike Dittrich
Reviewed in the United States on March 11, 2025
Way better than the last flasks I bought on Amazon
Jean Gregoire
Reviewed in Canada on June 6, 2023
Cette bouteille sert pour entreposer de l'acide nitrique. Ça fait la job!
Curtis Lysher
Reviewed in the United States on June 1, 2023
I used this to mix resins, it worked fine.
DJ Stephen Pitts
Reviewed in the United States on September 30, 2022
I bought these for Agar/Liquid Culture work. Bottles are rated for high temp and pressure ie...autoclave/Pressure Canner & Cooker work. Bottles also have drip resistant lip on them. Essential for pour work in home or lab.
ryan
Reviewed in Canada on January 28, 2022
The bottom is not flat
Jessi Bz
Reviewed in the United States on May 13, 2021
These are not made with scientific pyrex type borosilicate glass. They seem too be regular glass as they are very thick, much thicker than my other erlenmeyer flasks. However, seem to do the trick as long as your not going from hot too cold rapidly. I had 2 shatter on me going from cold to hot and hot to cold. But for the money, I can just use my "real" ones for such activities, and use these for what they are.
Dylan
Reviewed in Canada on September 25, 2020
I've purchased 3 different products from them so far (1x 500ml Erlenmeyer, 2x 250ml Erlenmeyer, 30MM Test tubes) and all of them have been high quality for super reasonable prices. I needed those 3 things to be autoclavable and they all have done just fine in my pressure cooker for over an hour and a half.Highly, highly recommend ULAB if you need any science ware.
Ben Reed
Reviewed in Canada on December 23, 2020
Bought for making agar and the bottom is so rounded the magnet stir bar will not spin at high speed making this useless to me also bought 4 250 ml and the same problem!
Mr. E
Reviewed in the United States on November 15, 2020
Exactly what I needed to pressure cook my agar. Other consumers are correct about the bottom being concave, however for me that isn't an issue. Glass is thick and durable
C. Adler
Reviewed in the United States on November 15, 2020
These are high quality and well marked. I was actually aiming to buy the smaller version but now that I have these I'm glad I have the extra capacity.
Clara
Reviewed in the United States on November 11, 2020
Loved them we used them with our mad scientist costumes held our adult orange crush beverages great. Very pleased with the fact they came with a screw on top.
Alexandra Fergusson
Reviewed in Canada on October 16, 2020
like other reviews mentioned it does not have a flat bottom, don't expect those to work well on magnetic stirrers. they are media bottles, they are for storing liquids not for general mixing and titration. they work perfectly for their intended purpose. caps seem to fit snug enough to be hermetic. Pour ring seems a bit loose and cheap compared to a pyrex bottle, but still great value for the money considering a pyrex media bottle is 2-4x this price!edit: they got marked up by a lot, not sure if they are still worth it at this price.
Sami and Aaron K.
Reviewed in the United States on April 28, 2020
Perfect for an application not requiring sterility. I used it to boil media in the microwave and the lid was nice to have. It did not seal completely so if you're going to store things long term you may want to plastic wrap the lid and neck. Glass is quality.
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