How many laboratory apparatus

While plastic beakers are only used to mix the chemicals, glass beakers have high thermal stability and can be used to heat chemicals also. Moreover, glass beakers provide more clarity for content visibility and measurement than their plastic counterparts. Beakers come in several sizes with volumes ranging from 5 milliliters to milliliters.

Beakers are often used to hold, mix, and heat individual chemicals or chemical mixtures. Reagent bottles, sometimes also referred to as media bottles, are specially designed containers or vessels to hold chemicals in liquid or powder form. They come in a variety of sizes, shapes, and are commonly constructed of glass or plastic. While most are clear glass vessels, some reagent bottles are colored amber actinic , brown, or red to protect light-sensitive chemical compounds from visible light, ultraviolet, and infrared radiation.

Flask is a category of glassware used in the chemistry lab. They come in a variety of shapes and sizes, with each one having a specific purpose associated with it. Erlenmeyer Flask, also known as a conical flask, is glassware comprising of conical body, flat bottom, and a cylindrical neck. It is one of the most commonly used flasks to carry out various experiments in the chemistry lab, such as titration, filtration, crystallization, etc. It was first patented in by a German chemist, Emil Erlenmeyer.

The slanting sides and wide base of an Erlenmeyer flask make it a perfect conical vessel to mix the chemicals by swirling without any risk of spillage. Additionally, the cylindrical neck of a conical flask can accommodate a glass stopper, and it also provides support to fit funnels. Based on the application, an Erlenmeyer flask can either be graduated or unmarked. Moreover, it can also be used for heating and boiling purposes. As the name suggests, a round bottom flask is a piece of laboratory glassware with a spherical bottom and a cylindrical neck.

The round bottom of the flask provides a suitable surface area for the equal distribution of heat around the vessel. Thus, it is often used in experiments that require uniform heating or boiling of the chemical contents. Additionally, the cylindrical neck can support funnels and accommodate glass stoppers.

Round Bottom flasks are often used with other heating apparatus such as sand bath, water bath, rotary evaporator, etc. It is widely used to carry out the laboratory-scale synthesis of other chemicals; however, it does not provide mixing as good as conical flask by swirling. A mechanical stirrer or glass rod comes in handy while mixing the contents in a round bottom flask. A volumetric flask is one of the laboratory glassware primarily used to prepare solutions. It is composed of a flat bottom conical-shaped bulb attached to an elongated neck with an engraved ring that serves as a marking that indicates a specific volume.

Because its mark specifies a precise volume measurement, the flask is also known as a graduated flask or measuring flask.

To prepare a solution, place the solute in the volumetric flask and then add enough solvent to dissolve it. After that, use a pipette or dropper to carefully add the solvent until the solution reaches the etched marking. The marking indicates the required volume of the solution.

Furthermore, the flask has a number on it to determine the size of the suitable glass stopper. Volumetric flasks are usually made of transparent borosilicate glass or plastic; nevertheless, amber-colored volumetric flasks are employed in laboratories for the preparation of light-sensitive solutions. The retort flask is an oddly shaped airtight glassware with a curved neck. Today, condensers have replaced retort flasks as a more convenient apparatus; nonetheless, retort flasks are still commercially available and can be used for non-complex distillation.

It is commonly used for vacuum filtration or distillation of solutions. Other names include vacuum flask, filter flask, suction flask, side-arm flask, and Kitasato flask. As the name suggests, a pear-shaped flask is laboratory glassware with V-shaped bottom, like an inverted pear. It is commonly used in organic chemistry for several heating purposes, such as evaporating solutions to dryness post-synthesis using a rotary evaporator and removing concentrated samples.

A Kjeldahl flask is a chemistry lab glassware that resembles a volumetric flask but has a circular bottom instead of a conical one. This flask was designed in the 19th century by Johan Gustav Christoffer Thorsager Kjeldahl, a notable Danish scientist, to assess the nitrogen concentration in organic compounds using the Kjeldahl digestion, a procedure he also devised. A schlenk flask is a type of laboratory glassware that is used to perform anaerobic reactions.

This is achieved by flushing the flask through its sidearm or with a wide bore needle attached to a gas line. In a chemistry lab, the test tube is one of the most widely used glassware apparatus. It is a cylindrical vessel with a round bottom that is used to hold chemicals during the experiments. Due to their high thermal stability, test tubes can be used to heat or boil chemical samples.

As the name indicates, boiling tubes are used to boil chemicals. Unlike test tubes, boiling tubes are made of pyrex, a material with superior thermal stability that allows them to be heated to far greater temperatures than borosilicate glass test tubes. A centrifuge tube is a cylindrical vessel with a cap that is used in a centrifuge machine to separate the components of solutions.

The centrifuge tubes are small test tubes with curved tips and can be made of glass or plastic. NMR, an acronym for Nuclear Magnetic Resonance, is an imaging technique used in chemistry as well as physics to observe the magnetic behavior around the atomic nuclei.

NMR tubes are specially built cylindrical tubes with a diameter of 5mm that are used to contain nucleus samples during spectroscopy. A thistle tube, also known as a thistle funnel, is a piece of laboratory glassware with a long tube shaft and a reservoir bulb with a flared rim on top. These funnels enable the precise placement of small quantities of chemicals in an existing system or apparatus, making it easier to add new materials to burets and narrow neck containers.

Thistle tube funnels reduce the possibility of a reaction occurring too quickly and gushing over. A capillary tube is chemistry lab apparatus commonly used to calculate the melting point temperature of chemical substances. Test tubes : The next very common apparatus are the test tubes. They are usually cylindrical pipes made up of glass, with a circular opening on one side and a rounded bottom on the other. Test tubes are one of the most important apparatus as they are functional from storing to mixing reagents in any chemical or biological reactions.

They become very handy when a large number of samples need to be tested for qualitative assessment of any test. Watch glass : This apparatus is made up of a concave piece of glass.

It is normally used to hold solids, evaporate liquids, and heat small quantities of different substances as per the need of the experiment. Sometimes, they also become functional in serving as a lid for the beakers. Crucibles : Crucibles are made up of porcelain and are used to store and heat substances when required to be heated at high temperatures since glassware is not always suitable for such high heat involving experiments.

Funnels : Funnels are necessary equipment to pour substances and solutions in narrow-mouthed test tubes and conical flasks. There is variety of its available, the most common ones are filter, thistle, and dropping funnels. Graduated cylinders : These are some cylindrical apparatus with several markings up and down the length of the container with the primary function dealing with proper measurement of a specific volume of liquid with precision. While taking readings, one needs to be careful to take into consideration the reading with respect to the meniscus of the liquid.

Volumetric flasks : This is one of the most important glassware of any lab, which is made up of glass and is calibrated to hold a precise volume of liquids at any precise temperature. Different sizes of volumetric flasks are available, each calibrated for exact measurement of liquids and solutions. It is mostly used in the preparation of standard solutions.

Droppers : The dropper, also known as Pasteur pipette, is a common small apparatus, usually made up of plastic or glass cylinder, having a small nozzle on one side and a rubber holder on the other. It is used to put the liquids or solutions in any medium dropwise, that is, one drop at a time, necessary equipment when any reagent is required in an extremely small amount in a solution. Pipettes: Pipettes are of varying sizes, designed for accomplishing specific goals of volumes.

These are narrow glass cylindrical pipes, used for measuring an exact volume of liquid and placing it into another container. Burettes : A very popular equipment, mostly used in the titration reactions, and is a handful in delivering a known volume of any substance to other equipment. This apparatus is a long-graduated tube, with a stopcock present at the lower end and a narrow opening at the bottom. They are usually set up by using a burette clamp in combination with a ring stand.

It usually comes in the sizes of 10ml, 25ml, or 50ml. Ring stands, rings, and clamps : These are the apparatus that are used to suspend burettes, flasks, crucibles, etc. While heating these flasks, wire mesh is a necessary apparatus for the even distribution of the heat. Tongs and forceps : Tongs, though not much in use, are common and basic apparatus in any lab.

They are used to grasp and lift hot vessels and harmful substances during any kind of reaction taking place in the lab. Forceps are used to grab small things like solid chemicals that are broken into chunks. Spatulas and scopulas : These laboratory spatulas are very much similar to the kitchen like spatulas found in our home but they are just very smaller in size in comparison. The spatulas are usually resistant to heat and acids, hence making them suitable for large range use in the laboratory experiments.

The burner is lit with a striker. A balance is used to weigh chemicals. The chemicals are always in some form of container and never placed directly on the balance. It is important not to move a balance because they have been calibrated for the exact position they are in.

Some balances have plastic housing with small doors to keep air currents from affecting the measurement. Close these doors whenever the balance is in use. To use a balance to determine the weight of a chemical, first put the empty container that the chemical will be in on the balance.

Once you have a reading, press the "tare" or "zero" button on the balance. Remove the container from the balance and add the chemical never add chemicals to a container while it is on the balance.

Reweigh after adding the chemical to find the weight of only the chemical. Ummm, does anyone, know what a spill is, I need to find a piece of equipment called a spill, not what happens if you spill chemicals, an actual apparatus called a spill, Plz help. Thank you so much for you help in show how you can practise you self at home during the pandemic of covid19 thank you so much. I liked the descriptions along with the actual names of the lab equipment.

Some information that I found here was not on other websites. Thank you! I do not think u are doing a good job especially for students ads r so not needed and related searches do not really relate so I think a change is needed as a student.

Marine Biology. Electrical Engineering. Computer Science. Medical Science. Writing Tutorials. Performing Arts. Visual Arts. Student Life. Vocational Training. Standardized Tests. Online Learning. Social Sciences. Legal Studies. Political Science. Welcome to Owlcation.

Related Articles. By Linda Crampton. By Kelley Marks. AP Chem Docs. Chemistry Lab Equipment and Safety. Chemistry Club. Scholastic Bowl. Science Olympiad. Used to hold and heat liquids. Multipurpose and essential in the lab.

Used to easily clean the inside of a test tubes and other glassware. Used with vacuum flask for performing vacuum filtration. Bunsen burner. Used for heating and exposing items to flame.

Used in titrations to measure precisely how much liquid has been delivered. Used to hold burettes on a ring stand. Used to hold crucibles when they are being heated.