When operating an evaporator, you are likely to experience problems such as sudden solvent bumping, vacuum pump being corroded, harmful gas escaping, and low receiving rate. The rotary evaporator system degree is quite higher than normal. You can avoid these problems by getting the right rotary evaporator. These are tips to help choose the best rotary evaporator.
Sample
You have to consider the sample you have as it plays a critical role in the evaporator setup. For instance, if acids are used, the system ought to be coated properly to avoid corrosion, particularly on the pump. Also, solvents can cause damage to the rubber and plastic components. Thus, they should be protected. An important consideration is the various samples that are condensed at different temperatures.
Safety Concerns
As a result of heating up acids, aqueous samples, and solvents, there is a need to have a variety of safety components and accessories to ensure operators are safe. You should note that the glassware is under extreme pressure because of the vacuum pump, and it can be used to ensure the flask does not shatter during operation. Protective hoods and shields with ventilation can help improve operator safety. There are some rotary evaporators that have advanced options like automatic shutoff and motorized lifts.
Environmentally Friendly Evaporator
For the collection and condensing of samples, you have unlimited options. Usually, cold fingers and condenser coils are paired with circulating dry ice or tap water. Although these methods are useful for this particular purpose, the need to change water continuously results in water wastage. You can now get rotary evaporators with circulating chillers that are attached to the evaporators. That allows for efficient condensation without causing waste associated with dry ice or tap water.
Ease of Maintenance
To ensure your evaporator is happy, you will need to look after the seals, tubing, and glass joints. Inspecting and replacing these parts regularly can ensure the system is performing at the required levels. Also, it will help the system maintain the required levels of vacuum during your evaporations. Moreover, ensure the needles are kept clean so that they do not get corroded or plugged.
Remember that air impermeability is a critical factor that affects the performance of a rotary evaporator. It also affects normal operations and service life. Air impermeability is determined by material choice, Manufacturer’s standards, and the design standards.