But, with wrongful use, these can also be a safety hazard. Follow the leading source for trustworthy and timely oral health and medical news and information. Providing credible health information. Start changing your life today! Healthsoothe is the leading source for trustworthy and timely oral health and medical news and information.
Providing credible health information and fast-growing dental news and health company. Sign in. Privacy policy. Password recovery. What is the laboratory Tools and Equipment? August 17, Last updated: April 15, In this article hide. Different Types of Laboratories.
Laboratory Tools and Equipment. Laboratory Freezers. Laboratory Incubator Calorimeter. Author Bio Global Lab Supply offers a complete range of laboratory equipment and supplies. If you want to buy the Laboratory Refrigerators and other equipment such as Analytical Balances then get more information at Global Lab Supply. Naveen Kumar. How useful was this post? Click on a star to rate it!
As you found this post useful Follow us on social media! Graduated cylinders come in many sizes. The smaller they are in diameter, the more specific the volume measurements will be. When reading the volume from a graduated cylinder, you will notice that the liquid seems to have an indentation. The liquid around the edges will be higher than the liquid in the center, sloping down like the sides of a trampoline when someone is standing in the middle.
This is called the meniscus. Line the lowest point of the meniscus up with the nearest marking, keeping the cylinder level to properly read the volume.
A volumetric flask is a round flask with a long neck and flat bottom. It is used to measure an exact volume of liquid. There is a small line on the neck that indicates how far to fill the bottle use the bottom of the meniscus.
They come with special caps that will not let anything in or out. Remember that temperature affects volume; therefore avoid using liquids that will fluctuate in temperature hot water that will cool, for example. These are small glass tubes with narrow tips on one end and a rubber bulb on the other. They suck up liquid that can then be squeezed out in small drops.
These can be used to add an indicator to a solution about to be titrated. There are a large variety of pipettes designed to accomplish specific goals.
However, they are all for measuring an exact volume of liquid and placing it into another container. A buret. These are usually attached with a clamp to a ring stand, as shown in the picture below. A buret is a glass tube that is open at the top and comes to a narrow pointed opening at the bottom.
Right above the bottom opening is a stopcock that can be turned to control the amount of liquid being released. There are markings along the length of the tube that indicate the volume of liquid present. A buret is used for extremely accurate addition of liquid. By adjusting the stopcock, the amount of liquid that is released can be slowed to a drop every few seconds. Burets are one of the most accurate tools in the lab.
To determine how much liquid is added, write down how much is initially in the buret. Then when you're finished adding, write down how much is left. Subtract the final amount from the initial amount and you have the volume of liquid added.
The ring stand is used to suspend burets, beakers, flasks, crucibles, etc. Always make sure everything is clamped to the stand tightly. When clamping glass, be careful not to shatter the glass. Only tighten until snug. When using a ring on the stand, there are usually other pieces necessary to accomplish the goal.
Wire mesh is laid across the ring to distribute evenly heat and support the beaker. A clay triangle with an open center is used to suspend crucibles. Tongs and forceps are for grabbing things that should not be touched by hand.
Some tongs are specially made to hold beakers, others to hold test tubes, and so on. There are also general tongs. Forceps are used to grab small things like solid chemicals that are broken into chunks, so they can be safely handled and added to containers. Three scoopulas on the left and a number of spatulas to the right. Spatulas and scoopulas are for scooping solid chemicals. They are typically used to scoop a chemical out of its original container onto a weigh boat so that it can be weighed on a balance.
A laboratory thermometer is used for measuring the temperature of liquids. It can be made of glass or it can be a thermocouple made of different metals. A Bunsen burner is a mechanical apparatus that is connected to a flammable gas source.
There is a knob to adjust the amount of gas flow and a rotating collar that controls airflow. Here, we show a list of common lab equipment in English with examples and pictures. The next days when the researchers flipped the beaker , the silicone oil began to form fat mounds. You will learn how to use scientific apparatus such as test tubes, beakers, and Bunsen burners. Use the eye dropper tool to sample the darkest green color, then paint the four corners with a little grunge in that color.
The Erlenmeyer flask is particularly suited for a magnetic stirrer since it can be placed directly on the stirring platform.
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