The test tube is well-known as a sample tube or a culture tube. This is a famous and a commonly used lab equipment. This glassware lab equipment is of finger length. It has a closed bottom and an open top. The test tubes need special racks to be held. The racks are designed to hold test tubes and prevent them from falling down.
Test tubes come in different shapes, sizes, and materials.
In this short write up, you will read about different types of test tubes.
Test tubes in Chemistry Labs
Test tubes are commonly used in chemistry labs. The demand for test tubes in chemistry laboratories is remarkably high. Test tubes used in these labs are usually made of glass. This is because glass test tubes have a longer life, they are resistant to corrosive chemicals and can bear the heat. Most test tubes for chemistry experiments are designed from glasses that are expansion resistant. To be more precise, they are made of borosilicate glass or fused quartz. These materials can handle high temperatures, even up to hundreds of degrees Celsius.
Chemistry glass test tubes come in a variety of widths and lengths. In most cases, the test tubes range from 10 to 20 mm in width. Likewise, the test tubes are 50 to 200 mm in length. Most test tubes have flared lips that help in pouring contents out.
Test tubes have three different types of bottoms. You will find the conical-, round- and flat- bottom. Some of these test tubes are designed to accept screw cap and glass stoppers. As you browse through our website https://glasstubes.eu, you will find test tubes that have a white glaze area. This area can be used for labeling.
The need for Chemistry test tubes
As mentioned previously, test tubes are used exhaustively by researchers, scientists, and chemists. The test tube is an important equipment for handling chemicals. If you are engaging in assays or qualitative experiments, you will need a bunch of test tubes! The vertical sides and spherical bottom reduces the loss of mass when you move or pour the solution. The design of test tubes makes it easier to wash and even monitor contents. Indeed, monitoring and washing are two common tasks performed by chemists. If you are dealing with experiments that can produce lots of gasses, you need test tubes with narrow and long necks. These test tubes reduce the rate at which glasses spread into the environment.
The tricky side of every experiment
Experiments involving dangerous chemicals shouldn’t be taken lightly. If you want to handle liquids conveniently, you must use test tubes. Often, test tubes will help you heat liquids and solids easily with an alcohol burner or a Bunsen burner. The tube can be held easily using tongs or a clamp. You can tilt the test tube towards the Bunsen flame so that the bottom touches the flame directly and the neck remains cold. Heating the solution to hundreds of degrees becomes easy with the test tube.