Round bottom flasks or RB Flask are types of flasks having spherical bottoms used as laboratory flasks, mostly for chemical or biochemical works. These flasks are made of PTFE /Teflon material, with many advantages. There is at least one tubular section known as the neck with an opening at the top. Two or three necked flasks are common as well. Round bottom flasks come in various sizes. PTFE Round Bottom Flasks are inert and can withstand temperatures up to 280°C. Inner tapers can be used without any sealing rings, offering compatibility with standard ground glass joint sizes.

I TEFLON ROUND BOTTOM FLASK



  TEFLON ROUND BOTTOM FLASKS Max Operating Temp 220  
Part No Stoppers Not Included  
  Capacity Single Neck 2 | Neck 3 | Neck 4 | Neck
90798 50 ml C19 C19 – S14 C19 – S14 – S14 NA
90799 100 ml C24 C24 – S14 C24 – S14 – S14 C24 – S14 – S14 – S14
90800 250 ml C24 / C34 C24 – S19 C24 – S19 – S19 C24 – S19 – S19 – S19
90801 500 ml C24 / C29 / C34 C24 – S24 C24 – S24 – S24 C24 – S24 – S24 – S24
90802 1000 ml C24 / C29 / C34 C34 – S24 C34 – S24 – S24 C34 – S24 – S24 – S24
90803 2000 ml C24 / C29 / C34 C34 – S24 / S29 C34 – S24 – S24 C34 – S24 – S24 – S24
90804 3000 ml C29 / C34 C55 C34 – S24 / S29 C34 – S24 – S24 C34 – S24 – S24 – S24
90805 5000 ml C29 / C34 / C55 C34 – S24 / S29 C34 – S29  – S29 C34 – S24 – S24 – S24
90806 10000 ml C34 / C55 C55 – S34 / S29 / S24 C55 – S34 – S29 C55 – S34 – S29 – S29
90807 20000 ml C34 / C55 C55 – S34 / S29 / S24 C55 – S34 – S29   C55 – S34 – S29 – S29
  Note : Not Suitable for applying pressure | Vacuum can be applied

PTFE / Teflon Round Bottom Flask Key Features

  1. Resistant to high temperatures and virtually all laboratory chemicals, including strong acids, strong alkalis, aqua regia and organic solvents
  2. Machine-finished surface for easy cleaning, and pure white appearance and  to eliminate contamination and ease cleaning
  3. Compatible with cryo temperatures to moderate heating -196°C to 250°C (-321 to 482°F)