Sunday, October 23, 2011

Laboratory Glassware: Erlenmeyer Flasks

Another common and useful Glassware found on the lab is the Erlenmeyer Flask, why is it called this way?, this is thanks to its creator: Emil Erlenmeyer.

Erlenmeyer_Flask_Original_DesignHere is a picture of the original drawing made by Emil of his invention.


The shape of this flask is very unique, and easy to distinguish from other glassware, it has a narrow neck and a flat bottom. The lips are rounded on most Flasks.

And like most Glassware it is made of Pyrex or Borosilicate Glass. The capacity is wide aswell, there are Erlenmeyer Flasks of 50, 150, 250, 500 and 1000 mL.


Personally i find this Flask one of the most useful Glassware in a Lab, its good to mix substances as its easy to shake without fearing of spilling chemicals around thanks to its narrow neck. And trust me there is no way to spill anything if you shake it in the correct way, no matter how hard you do it :). It is also used on titrations.

Good to hold volatile chemicals, as you can easily seal the Flask with cork or stopper, a watch glass, paraffin film or Tin foil on top of it preventing harmful vapors being spread in the air, even if not covered the narrow neck has a slow evaporative loss compared with a larger neck like the Beaker.

More Laboratory Glassware 


Hento the loony repairman :D said...

i never got to use these on my chem class, we just got theory and never used nay equipment, such is the life in education system in mexico (well that ws years ago i hope kids get to play with these nowadays!)

ReMs said...

neither did i Hento, i only had the chance to watch 1 or 2 experiments conducted only by the teacher, never actually used or did anything on the Lab until i got to the University

Liaata said...

in german its called "Erlenmeyerkoblen" and i used it all the time.
It has alot of favors compared to other flasks.

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