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QWORK Boiling Flask, Single Neck Round Bottom, 24/40 Standard Taper Outer Joint, 1000ml

4.8 (8) Write Review
Free shipping on orders over $29.99

$17.97

$ 7 .99 $7.99

In Stock

1.:250ml


2.Color:2 Pcs


About this item

  • Premium Quality: Made of high-quality borosilicate glass, heavy glass wall, durable and reusable.
  • Standard Size: The round-bottom flask features the 24/40 standard taper outer joint, interchangeable and leak-free. The capacity of 1000ml.
  • Heat-Resistant: With the round bottom, the boiling flask is more resistant to breaking under vacuum, as a sphere can evenly distribute stress across its surface. Heavy glass wall, made by hand-blowing to ensure even wall thickness, made of high-quality borosilicate glass and annealed at 800 degrees Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling.
  • Wide Application: The round bottom flask is widely used in organic chemistry, in distillation, or vacuum distillation apparatus.


QWORK


DAN
Reviewed in the United States on July 4, 2024
Works great!
Nisha
Reviewed in the United States on July 13, 2024
This round bottom flask has absolutely no base and rolled off the table and broke
Steven C. Dahman
Reviewed in the United States on March 14, 2024
Came quickly and packed very nicely and even more secure. Seems okay no flaws in the glass. I have yet to put it to heat for distillation, so I may be updating. Other than that all is well, great price for a rbf.
William
Reviewed in the United States on April 15, 2024
Don't go crazy with the heat differentials, and don't toss on the ground. Other than that, if you accidentally knock it against something r have to use a torch on a seized stopper don't worry about it fracturing.
Daniil
Reviewed in the United States on September 15, 2023
I was expecting the flask to be a bit bigger like my old broken one. However, it turned out to be about 100 ml smaller so if you pour 1000 ml into the flask and want to boil it it might boil over. This product is good quality and was well packed but I can't really boil more than 900 ml in it even though it holds 1000 ml just fine.
karin
Reviewed in the United States on July 25, 2023
Replacement for old flasks in lab
JOSEPH W. TAURECK
Reviewed in the United States on October 20, 2023
On time and unbroken
Transcondutor
Reviewed in the United States on January 10, 2023
I’ve purchased 3 flasks and a separatory funnel and all 3 broke meanwhile I have 4 year old boiling flasks perfectly in tact. As receiving flask’s they’re fine (so is are wine bottles)The flasks only broke after boiling in them and the stopcock exploded on the funnel.