Stirring Rod
Stirring Rod or glass stirring rod is used for mixing and stirring of different chemicals. it is made up of solid glass (borosilicate or ) having rounded edges slightly thick and longer than a soda water straw. Stirring Rods are often 10 to 45 cm long with almost a half-centimeter in diameter. it is also available in the triangular paddle, flat paddle, or round button shape.
Measuring flasks OR Volumetric flasks
A volumetric flask is a round flask with a flat bottom and long neck. Volumetric Flask is used to measure the exact volume of liquids. There is a short line on the neck that hints how far to fill the flask. Special caps are available that will not let anything in or out through the flask. These are available in different sizes i.e., 100cm3, 250cm3, 500cm3 and 1000 cm3.
Just Remember: The temperature affects the volume; therefore always avoid using liquids that will vary in temperature (for example hot water that will cool).
Burette
Burettes are often used for the addition of a precise and accurate volume of the liquids. with the use of burets, you can measure or determine the volume of liquids up to nearly to 0.01 mL . These are normally attached to a ring stand with a clamp. A burette is also like a glass tube that is open from the top and becomes a narrow pointed opening at the bottom side. Right above the bottom opening; there is a stopcock.
This stopcock can be turned to control the released amount of liquid. There are also certain markings along the length of the burette that indicates the volume of any liquid present in them. A burette is especially used for extremely accurate addition of liquids. By slightly adjusting the stopcock, the amount of releasing liquid can be slowed down to a single drop every few seconds.
Buret is one of the most accurate tools in the laboratory. To determine the added amount of liquid in solution, write down the readings, how much is present initially in the buret. Then when you were finished adding liquids, write down how much liquid is left. Now, Subtract the final amount of liquid from the initial amount and you have the exact volume of liquid which is added.
Forceps
Forcep is derived from a Latin word forcipes used for holding and grasping small objects in laboratories. they are used when things are picked up in bulk or when large fingers are unable to collect little and tiny things. besides this, “forceps” is a very common word in the medical field. in the common world, forces are referred to different names like pliers, tweezers, clip, stongs, or clamps, etc. basically there are two major types of forceps:
- Non-disposable forceps
- Disposable forceps
Pipettes as Laboratory Apparatus
There is a large variety of pipettes that are designed to accomplish many specific goals. However, they all are for measuring the exact volume of liquids and then placing liquids into the other containers. Generally available sizes are 10cm3, 20cm3 and 25cm3.
Thermometer
The temperature of a substance is measured using a thermometer. The temperature in the laboratory is usually measured in units of degree Celsius (˚C).
Striker
Bunsen burner is lightened by the striker.
Watch glasses
A watch glass circular convex or concave rounded piece of the glass often used to hold a small amount of solid or liquid, to evaporate a liquid, while being weighed and many other purposes. Watch Glasses also used for different purposes like evaporation.
it can also work as a lid for a beaker to prevent dust from entering in a beaker. in chemistry Lab, two types of Watch glasses are used such as glass watch glasses and plastic watch glasses. both types have various sizes and varieties in the market. the glass type is more famous than plastic-type. mostly glass type is reused and plastic-type are disposable i.e., for one-time use.
Pipet Bulb
Pipet Bulb is used to draw different liquids into the pipet.
Iron stand
It is used for hanging (thermometer), clamping/holding (burette, round bottom flask, etc.).
Ring Clamp
ring clamp is used with a ring stand to hold different types of glassware like funnel or beaker.
Wash Bottle
Nowadays polythene wash bottles are used in the laboratory for storing distilled water for various operations such as transferring precipitates from a container to the filter paper or washing the precipitates. When the bottle is pressed with hand, water comes out through the jet in the form of a fine stream.
Flat bottomed – Florence flasks, AKA boiling flasks
It is also known as a boiling flask. Florence flask contained a round bottom with a long neck. It is used for holding liquids and can easily be heated and swirled. It can also be capped by glass or rubber stoppers easily. Once again, safety edict that this flask never is heated when covered or capped with stopper. It build-up pressure and can result in an explosion.
Scoopula
Scoopula often used for transfer solids to different locations.
Erlenmeyer Flasks
you can use Erlenmeyer flask to place liquid samples or to catch filtrates as a laboratory apparatus.
Utility Clamp
Utility Clamp resembles a couple of scissors often used to secure glassware to a ring stand. it has a screw in the middle that is used to wide the adjustments between two-prong. ring stand or retort stand is attached to it. round laboratory glassware is held e.g flasks and beakers etc. with the help of Utility Clamp. there are three major parts of Utility Clamp:
- clampdown
- 2-prong adjust
- metal rod
Ring Stand
Ring Stand is helpful as a laboratory apparatus for holding or clamping different lab glassware so that it does not fall down.
Droppers
they have used for the addition of liquids/solutions in the shape of drops.
Test tube stand
It is made of wood, polythene, or steel on which test tubes can be placed in an upright position. Test Tubes are normally held in a test tube rack. Test Tube Racks are specifically designed for the purpose. If these test tubes become risky to touch with bare hands (in a case due to heat or some other reason); test-tube tongs are used to move them.
Test Tube Clamp
Clay Triangles as Laboratory Apparatus
the use of Clay Triangles seen very rare but here we can’t miss an opportunity to describe every single opportunity to discuss every apparatus. Clay Triangles are placed on a ring that is attached to a stand that provides support to funnel, evaporating dish or crucible, etc.
Balance
Ballance is Used to measuring different small masses.
Crucible
Crucible Tongs
SOURCE: Laboratory Apparatus and their Uses with drawing and Pictures (guidancecorner.com)
