Laboratory drying rack is a
pegboard
Perforated hardboard is tempered hardboard which is pre-drilled with evenly spaced holes. The holes are used to accept pegs or hooks to support various items, and perforated hardboards are therefore used for purposes such as tool boards in work ...
for hanging and draining
glassware
upTypical drinkware
The list of glassware includes drinking vessels (drinkware) and tableware used to set a table for eating a meal, general glass items such as vases, and glasses used in the catering industry. It does not include laboratory glas ...
in a
laboratory
A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratory services are provided in a variety of settings: physici ...
. It is available in different varieties and sizes. It can be used for different materials of glassware in the laboratory room such as
funnels
A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening.
Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its constr ...
,
pipettes, mixing balls, slides, bottle stoppers,
tubing and so on.
[Lab Drying Racks. (2016). ''M2 Scientifics.'' Retrieved from: https://www.m2scientifics.com/100-lab-drying-racks] In addition to that, the pegs on the drying rack are easily removable and replaceable in order to maintain the cleaning of the lab racks to avoid contamination with other apparatus used on the same rack.
Any common laboratory needs to have at least two or three drying racks per lab.
[Mallapaty G.(2001). Equipment Requirements for a PHC Centre Laboratory. ''The Public Health Care Laboratory.'' Retrieved from: http://www.phclab.com/images/phc.pdf]
Types
Laboratory drying rack can be mainly categorized into three major types including
stainless steel laboratory drying racks,
epoxy
Epoxy is the family of basic components or Curing (chemistry), cured end products of epoxy resins. Epoxy resins, also known as polyepoxides, are a class of reactive prepolymers and polymers which contain epoxide groups. The epoxide functional ...
laboratory drying racks, and
acrylic laboratory drying racks.
;Stainless steel laboratory drying rack
Stainless steel laboratory drying rack, which is also known as a 'Mod-Rack' pegboard, is the drying rack made of stainless steel that uses to drain laboratory accessories. The examples of stainless steel laboratory drying rack are flask holders, soap dispensers, paper towel dispensers, glove box holders, drain shelves.
Stainless steel pegboard installation is very easy and quick to set up with basic hand equipment's, and it does not damage the wall as mounting brackets and hardware are being used.
;Epoxy laboratory drying rack
Epoxy laboratory drying racks are the most common type of drying rack that are used among university labs and science classrooms in many high schools.
Epoxy drying racks are mounted directly to a wall or other solid structures which can be set up with basic hand tools and power tools. They are easily installed by using wall anchors and other strong fasteners due to their small weight. Typical installation is to drill holes, one at each corner, and to use the mounting points in order to fix it to the wall.
; Acrylic laboratory drying rack
Acrylic laboratory drying racks give a unique feature that other pegboards cannot do. The clear acrylic is transparent, which means that it allows the light to pass through as well as brightening the working area. Acrylic pegboards are mostly in the place where there are no lights, or to be done in dim areas.
Like epoxy pegboards, acrylic laboratory pegboards are also installed with basic tools and power tools in the same way. However, acrylic pegboards are made up of plastic, so it can be easily scratched as compared to the epoxy and the stainless steel drying rack.
Usage
Laboratory drying rack can contain and dry up various types of laboratory glassware such as
beaker,
Erlenmeyer flask,
volumetric flask
A volumetric flask (measuring flask or graduated flask) is a piece of laboratory apparatus, a type of laboratory flask, calibrated to contain a precise volume at a certain temperature. Volumetric flasks are used for precise dilutions and prepara ...
, and
graduated cylinder
A graduated cylinder, also known as a measuring cylinder or mixing cylinder, is a common piece of laboratory equipment used to measure the volume of a liquid. It has a narrow cylindrical shape. Each marked line on the graduated cylinder represent ...
.
; Tube
Laboratory drying rack is usually used to dry up the tube in the laboratory; for example, it can help in drying
test tube
A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom.
Test tubes are usually placed in s ...
,
boiling tube, and
Thiele tube.
; Flask
In addition, laboratory drying rack can hold many types of
flask including
round-bottomed flask
Round-bottom flasks (also called round-bottomed flasks or RB flasks) are types of flasks having spherical bottoms used as laboratory glassware, mostly for chemical or biochemical work. They are typically made of glass for chemical inertness; a ...
,
Florence flask, kjeldahl flask, pear-shaped flask, retort flask,
Schlenk flask,
Straus flask
A Schlenk flask, or Schlenk tube, is a reaction vessel typically used in air-sensitive chemistry, invented by Wilhelm Schlenk. It has a side arm fitted with a PTFE or ground glass stopcock, which allows the vessel to be evacuated or filled with ...
,
Buchner flask, and
Claisen flask
Rainer Ludwig Claisen (; 14 January 1851 – 5 January 1930) was a German chemist best known for his work with condensations of carbonyls and sigmatropic rearrangements. He was born in Cologne as the son of a jurist and studied chemistry at the u ...
.
; Funnel
Moreover, laboratory drying rack can be used to drain other types of laboratory glassware as well. For instance, in terms of
funnel, it is used to dry up
separating funnel
A separatory funnel, also known as a separation funnel, separating funnel, or colloquially sep funnel, is a piece of laboratory glassware used in liquid-liquid extractions to separate (''partition'') the components of a mixture into two immisci ...
,
dropping funnel,
filter funnel
A filter funnel is a laboratory funnel used for separating solids from liquids via the laboratory process of filtering.
In order to achieve this, a cone-like shaped piece of filter paper is usually folded into a cone and placed within the funnel. ...
, and
Thistle funnel
A thistle tube is a piece of laboratory glassware consisting of a shaft of tube, with a reservoir and funnel-like section at the top. Thistle tubes are typically used by chemists to add liquid to an existing system or apparatus. Thistle funnels a ...
.
; Benefits of using laboratory drying rack
It is better than using towel or compressed air, due to the fact that it can introduce fibers and impurities, that can contaminate the solution.
[About Education. (2015). ''How to Clean Laboratory Glassware'' Retrieved from: http://chemistry.about.com/od/chemistrylabexperiments/a/cleanglassware.htm]
It is a more economic approach, than using drying oven which is not that quantitatively clean.
[Glassware Care and Cleaning. (2016). ''University of Delaware Department of Chemistry and Biochemistry'' Retrieved from: http://www1.udel.edu/chem/GlassShop/GlasswareCare.htm]
It can dry up a lot of glassware in one rack, making it very compact and easy to use.
Additional images
File:Lab Drying Rack.jpg
File:Lab Drying Rack 2.jpg
File:MUIC Lab Drying Rack 2.jpg
File:Lab Drying Rack Yellow 2.jpg
File:Lab Drying Rack Yellow 3.jpg
File:Lab Drying Rack Yellow 5.jpg
References
{{Laboratory equipment
Laboratory equipment