Laboratory flasks are vessels or containers that fall into the category of laboratory equipment known as glassware. In laboratory and other scientific settings, they are usually referred to simply as flasks.
What is a scientific flask called?
The Erlenmeyer flask is named for Emil Erlenmeyer (1825–1909), a German organic chemist who designed the flask in 1861. The flask is often used for stirring or heating solutions and is purposefully designed to be useful for those tasks.
What is a flask used for in chemistry?
Flasks can be used for holding and measuring solutions, as well as for chemical reactions and phase changes (heating, cooling, etc). Flasks are normally the site of chemical reactions, for the reaction can take place in the large vessel and have low risk of spilling due to the long, narrow neck of the flask.
What is a round flask used for in science?
The boiling flask, also known as a round bottom flask, is a chemical vessel with a spherical body and a cylindrical neck. It is most often used when heating solutions, particularly for distillation.
What is flask science? – Related Questions
How many types of flasks are there?
There are two basic types: glass and plastic.
What are science glasses called?
Beakers are the workhorse glassware of any chemistry lab. They come in a variety of sizes and are used for measuring volumes of liquid.
Why are boiling flasks round?
The flasks are designed to have round bodies with long, thin necks to facilitate uniform heat distribution and minimize evaporation. Boiling flasks are typically made of borosilicate glass, which is resistant to thermal shock and chemicals.
Round bottom flask is preferred to flat bottom flask because in round bottom flask heat is uniformly distributed on heating.
What is the meaning of round bottom flask?
round-bottomed flask (plural round-bottomed flasks) (chemistry) A glass flask used in a laboratory for holding chemical liquids and solutions, which has a spherical shape for uniform heating, and one or more long cylindrical necks.
Why do scientists prefer round bottom flasks for reactions under high heat or vacuum?
Round-bottom flasks are used to perform reactions under high heat or vacuum because their round shape is more resistant to cracking. In this category are also specialized glassware known as condensers, which are used to collect gaseous vapors and condense them back into the liquid phase to be collected.
Why is a pear shaped flask used?
Pear-shaped flasks are typically used for evaporating solutions to dryness post synthesis using a rotary evaporator. The ’rounded V’ shape of the flasks enables solid materials to be scraped out more efficiently than from a round bottomed flask.
Which flask is used to store chemicals?
A round-bottom flask is used to store chemicals.
What are the round flasks called?
Round-bottom flasks (also called round-bottomed flasks or RB flasks) are types of flasks having spherical bottoms used as laboratory glassware, mostly for chemical or biochemical work.
How can you identify a flask?
Volumetric flasks are easily identified by their tall necks. This type of glassware is used to prepare a solution with a specific volume. Round-bottom flasks, as the name implies, have a round bottom and no side arm.
Centrifuge tubes are used in laboratory centrifuges, machines that spin samples in order to separate solids out of liquid chemical solutions. The centrifuge tubes can be made of glass or plastic, and resemble miniature test tubes with tapered tips.
What does a Florence flask look like?
A Florence flask has a round body, a long neck, and often a flat bottom. It is designed for uniform heating, boiling, distillation and ease of swirling; it is produced in a number of different glass thicknesses to stand different types of use. They are often made of borosilicate glass for heat and chemical resistance.
How do you clean a boiling flask?
How do you boil a flask?
What is a retort flask?
The simple form of retort, used in some laboratories, is a glass or metal bulb having a long, curved spout through which the distillate may pass to enter a receiving vessel. The design dates back to the cucurbit (flask) used by medieval alchemists.
Are retorts still used?
In laboratory use, due to advances in technology, especially the invention of the Liebig condenser, retorts were largely considered to have been rendered obsolete as early as the beginning of the 20th century.
What is the difference between a Florence flask and an Erlenmeyer flask?
Both Erlenmeyer flasks and Florence flasks are two such lab glassware we use to handle liquids. Erlenmeyer flask is a laboratory flask that has a conical shape and a flat bottom, while the Florence flask is a laboratory flask with a round body and a long neck, named after the city of Florence.
