Most laboratories demand a clean, germ-free, dry environment for conducting its researches or dealing with hazardous chemicals. These need special storage conditions to avoid any accidents. The workers and scientists come across super reactive and aggressive compounds that may be toxic. They cannot be left out in the open and require sensitive handling. Even the slightest environmental changes can trigger an explosive reaction that may be dangerous or even fatal to lab personnel.
What is a pass-through
desiccator?
Several chemicals are highly reactive to moisture, known as
hygroscopic chemicals that need sensitive handling. Pass through desiccators
are an efficacious lab device that contains enclosed chambers to preserve
reactive chemicals and implement its safe maneuver. They assure a
moisture-free surrounding for humidity sensitive products and play a vital role
in personnel security.
What is its elementary role?
There are various types of desiccators available in the
market that use desiccants for bringing the humidity level down and suck in all
the moisture to make air dry within its cabinets. The kind of desiccant used
might vary though all have a common purpose. Of which, pass-through
desiccators are more efficient as they provide multiple chamber
handling at a single time. The substances can be transferred from one chamber
to another without exposing it to pressure, humidity, and temperature changes
by the external environment. That enhances security while handling and maintain
the optimal microenvironment conditions.
Specifications of a pass-through desiccator
Have you been wondering about the best pass-through
desiccator for your lab work? We, through this article, want to give a brief the detail on general specification guidelines that must be kept in mind while
making your choice.
The most important feature of these desiccators is that it
should have separate air locked chambers for transferring compounds through
channels safely. It should be completely sealed to avoid any unwanted
contamination or changes in humidity levels. Dryness can be achieved by
desiccants or with the help of a gas purge system to control air pressure and
relative humidity level.
They should have dual-sided access doors – one for entry and
the other for exit. When one of them opens then the other should be
automatically locked to allow safe handling of the compound. There are gaskets
on the door to make it airtight, so they should be checked periodically to
ensure tightness. The door panels must be SDPVC coated to avoid electrostatic
discharge. That is essential for the safety of lab personnel also. The
device should be convenient to use for enhanced purposes having eliminated the
need for a manual monitoring system.
Your pass-through desiccator must be contaminant free. Even
the slightest entry of particulate content or relative changes in humidity can
alter the chemical compound and defeat the purpose of experimentation. The doors should be interlocked for better security.
The pass-through desiccators should be of appropriate
dimensions to adjust and store chemical substances easily. The size of your
desiccator would depend on the nature of work performed at the lab. Multiple
numbers of chambers facilitate better handling of the product rather than
traffic build-up in one place. That saves time along with the
cost of multiple device installations. The process should be economically
productive in terms of maintaining the functionality of the chemical by pressure,
temperature, and moisture controlled system.
The material of the desiccator cabinet and shelves is an important
consideration. It usually is made up of stainless steel, polycarbonate, or
polypropylene compounds. The chief purpose is to provide durable, rust-free,
inert, and easy to handle desiccator for a safe humid-free microenvironment.
There should be removable shelves and racks so that the size
of the chamber can be adjusted depending on the situation. The perforated
shelves would minimize the accumulation of garbage, regulate contaminant entry,
and facilitate the easy purging of gases.
There should also be suitable gas ports to allow flexibility
in terms of purging of different gases as per requirement. Check whether there
are well-installed gauges for creating the vacuum and purge watch system for
controlling the relative humidity levels inside.
The pass-through desiccators should be designed in such a way
that if offers sterilization regularly to maintain the desired level of purity
within the micro atmosphere of the desiccator. Since it is very important to
prevent the chemical from adulterants, cleaning should be done regularly to
keep dust particles at bay. Also, with the maintenance of the ultra-dry
environment, it would be difficult for microbial growth to occur, helping to fulfill
the aim of the device.
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