Physical Description
An Erlenmeyer Flask (named after Emil Erlennmeyer) is a common piece of laboratory glassware since 1861. It is also known as as a conical flask or E-flask. It has a conical body, flat base and a narrow cylindrical neck. The flask is usually marked to indicate the approximate volume of their contents.
The flask is chosen to replace a beaker if there is a need to stopper the contents. The narrow neck is sized to accept standard rubber stoppers or corks.
The conical shape and narrow neck facilitates stirring by swirling.
The small neck reduces evaporative losses. The neck may be fitted with side tubes to allow the extraction of produced gases
The flat bottom improves stability on lab benches. A Florence flask has a similar overall use but is more unstable because the body is round and the base is smaller.
Uses
Erlenmeyer flasks are used for:
Disadvantages:
The Erlenmeyer is often stirred with a glass rod even though swirling is more often suggested. Inexperience students often do this while holding the flask at near eye level. A tap with the rod will knock the bottom off dumping the (usually nasty poisonous, hot and corrosive) contents all over the students legs.
Erlenmeyer flasks are used to measure, mix, and store liquids.
Used of graduated cylinder
Emil Erlenmeyer created Erlenmeyer flask in 1861.
The Erlenmeyer flask is named after the German chemist, Emil Erlenmeyer, who developed the instrument in 1861.
A graduated Erlenmeyer flask can measure a volume.
Erlenmeyer flask is a conical flask made from glass or plastic, sometimes graduated or with a stopcock; uses: - to contain liquids or powders - to realize chemical reactions - it is the preferred flask for titration - heating of liquids (only in Pyrex glass) See also the link below.
Erlenmeyer flask is a conical flask made from glass or plastic, sometimes graduated or with a stopcock; uses: - to contain liquids or powders - to realize chemical reactions - it is the preferred flask for titration - heating of liquids (only in Pyrex glass) See also the link below.
Many scientists use Erlenmeyer flasks, but the most obvious users are chemists and biologists.
The Erlenmeyer flask was designed by the German chemist Richard August Carl Emil Erlenmeyer (28 June 1825 - 22 January 1909).
The Erlenmeyer flask is not good for heating solids.
An Erlenmeyer Flask is commonly used for chemistry experiements.
erlenmeyer flask