All across the world, labs contain glassware in a variety of sizes and forms. As consumers choose less durable and unfriendly plastic substitutes, the usage of laboratory glassware has started to decline in recent years. However, glassware is still essential since so many chemicals and experiments rely on it. In this article, we examine the many varieties of laboratory glassware in more detail, along with their functions.
Note: You can take glass for lab what you want from TORO.
Why Is Laboratory Glassware Still Required?
For laboratory glassware, a variety of glass kinds are employed, although they all have a few things in common:
- First, while this may seem a little apparent, glass is transparent, making it simpler to oversee experiments.
- Glass can tolerate thermal stress and is also heat resistant.
- Because it is generally inert, it won’t interact with the test materials.
- Finally, because glass is simple to mould and shape, custom pieces of scientific glassware may be made for particular investigations and needs.
Glass Types Uses:
Laboratory glassware is created using a variety of glass kinds, as was already described. Every type of glass has distinctive qualities that make it suitable for a range of uses:
- Borosilicate glass:
Borosilicate glass is the most popular form of glass utilized. It can tolerate thermal stress and high temperatures naturally and is translucent. Medical devices, cookware, and lab apparatus are all made of borosilicate glass, which also has numerous other applications.
- A quartz glass:
Being made entirely of silica, it is frequently referred to as Fused Silica. Quartz glass is transparent to some wavelengths of electromagnetic radiation and can tolerate very high temperatures.
- Frit Glass:
Having pores that allow for the passage of liquids or gases, fritted glass is one such variety. In labs, it is frequently employed to filter materials.
- Glass with silane is:
This kind of glass is coated to stop organic compounds from sticking to it, which makes it a popular choice for cell culture.
Glassware Names and Uses in Chemistry:
Beakers, flasks, pipettes, and test tubes are examples of typical glassware items. Each has a distinct shape and function:
The main piece of glassware in each chemical lab is the beaker. They are used to measure liquid volume and exist in a range of sizes. Beakers are not very accurate. Some even lack volume measurement markings. A typical beaker has an accuracy of 10% or less. To put it another way, a 250 ml beaker will hold 250 ml of liquid plus or minus 25 ml. A liter beaker will measure liquid accurately to within around 100 ml.
A beaker is simple to set down on level surfaces like a lab bench or a hot plate because to its flat bottom. It is simple to pour liquids into other containers thanks to the spout. The beaker’s broad mouth also makes it simple to add ingredients. Beakers are frequently used for mixing and transporting liquids because of this.
- Erlenmeyer Flasks:
There are several varieties of flasks. An Erlenmeyer flask is one of the most popular in a chemistry lab. This kind of flask has a flat bottom and a small neck. It works well for heating, heating up, and spinning liquids. Both a beaker and an Erlenmeyer flask are appropriate containers in some circumstances, however if you need to seal a container, it’s far simpler to place a stopper in an Erlenmeyer flask or cover it with parafilm than it is to do so with a beaker.
There are many sizes of Erlenmeyer flasks. These flasks may or may not have volume markings, just like beakers. They are within 10% of the true value.
- Test Tubes:
Small samples can be collected and stored in test tubes. They are not frequently used to measure exact volumes. Compared to other forms of glassware, test tubes are comparatively cheap. Some of those intended for direct flame heating are constructed of borosilicate glass, while others are composed of less durable glass and occasionally plastic.
Volume marks are typically absent from test tubes. They can have either smooth apertures or lips and are priced according to size.
Small amounts of liquid can be consistently and frequently delivered by pipettes. Pipettes come in a variety of varieties. Unmarked pipettes may not have volume marks and deliver liquids in drops. To measure and deliver accurate quantities, other pipettes are employed. For instance, micropipettes can accurately dispense liquids down to the microliter.
Although some are made of plastic, glass makes up the majority of pipettes. Extreme heat or flame should not be applied to this sort of glassware. Extreme temperatures can cause pipettes to distort and lose their measuring precision.
- Boiling flasks, or Florence flasks:
A spherical, thick-walled flask with a small neck is known as a Florence flask, sometimes known as a boiling flask. To survive heating from a direct flame, it is usually always made of borosilicate glass.
The flask’s neck has a clamp hole that enables safe holding of the glassware. While the capacity of this kind of flask may be measured precisely, the measurement is frequently not stated. There are several of 500-ml and liter sizes.
- Volumetric Flasks:
Solutions are made in volumetric flasks. Each has a short neck and a marker, often for a single exact volume. Volumetric flasks are not intended for heating because materials, including glass, expand or contract in response to temperature changes. These flasks can be sealed or stoppered to prevent evaporation from affecting the concentration of a solution that is being kept.