Rotary Evaporator
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How to Use The Rotary Evaporator Safely

The distillation process of the rotary evaporator should be careful. Modern rotary evaporators are not only standard in laboratories in the pharmaceutical, chemical and biopharmaceutical industries, but also in the processing of high-value samples. Due to the use of liquid and vacuum heating, rotary evaporators are a safety hazard in the laboratory, so many people regard additional safety functions as the most important condition. In this article, I will teach you how to use the rotary evaporator safely.

In a conventional distillation apparatus, the distilled liquid medium is only accessible to the heat source at the wall of the distillation vessel. This contact can lead to overheating, which can lead to uncontrollable boiling evaporation processes. This will also bring security risks to equipment and personnel. On the other hand, too high a temperature can also affect the quality of the product or the sample is completely scrapped. Vacuum (boiling and evaporating at low temperatures) and rotation (avoiding overheating) through a rotary evaporator can completely control the diluent removal process.

Rotary evaporator condenser

Rotary evaporator condenser

The company uses a PTFE and rubber composite seal to maintain high vacuum. High efficiency condensers ensure high feed rates for continuous feed. Water bath pot digital constant temperature control, reasonable structure and materials. The mechanical structure is mainly made of stainless steel and aluminum alloy parts, and the glass parts are all made of high temperature resistant high boron glass. Imports of key parts of electrical appliances and rubber seals are all easy to adopt in New International, which is convenient for users to purchase and update. How can I safely use the rotary evaporator?

Rotary evaporator vacuum gauge

Rotary evaporator vacuum gauge

  1. The degree of vacuum

Vacuum is the most important process parameter for rotary evaporators. Users often encounter the problem that vacuum can not be reached, which is often related to the nature of solvents used. The biochemical pharmaceutical industry often uses acetic acid, ethanol, propanol, ethyl ester, diethyl ether, petroleum ether, chloroform, water, and stupid as the solvent. Generally, the vacuum cannot withstand strong organic solvents, and the special vacuum pump with strong corrosion resistance can be selected first. (I recommend you use a water circulation vacuum pump)

Rotary evaporator motor

Rotary evaporator motor

  1. Motor temperature rise

The motor uses E-class insulation and the windings are made of polyester high-strength enameled wire. The use environment and altitude should not exceed 1000 meters, and the ambient temperature should not exceed 40 °C. Continuous use of the motor surface temperature rise (the difference between the motor surface temperature and the environment) does not exceed 45 ° C is normal and can be used with confidence. If the temperature rise exceeds 45 °C, check the relevant transmission lubrication system. If the ambient temperature is very high, the water bath temperature is also high, and the user can use the fan to cool.

Rotary Evaporator

Rotary Evaporator

  1. Daily maintenance and cleaning

Heating pot: Use deionized water or low viscosity clean silicone oil and replace it every week.

Glass components: The glass ground connection is cleaned weekly with ethanol and vacuum silicone grease applied.

Sealing ring: It is recommended to check the wear of the sealing ring every quarter (can be judged by the vacuum value).

Host: Keep the outer casing and panel dry.

Cleaning: Disconnect the power when cleaning and maintaining the instrument. Use a surfactant-based cleaner or use isopropyl alcohol to clean inert stains.

The above mentioned text is to teach you how to use the rotary evaporator safely. If you want to know more about rotary evaporator, please contact with us. Henan lanphan is a qualified company which boasts good reputation both home and abroad. For several decades, we are dedicated to the manufacture of laboratory equipment and pipe fittings. If you want to know more about our products and intend to purchase our products, please contact with us as soon as possible. We are willing to provide you as much information as possible. Our email address is the [email protected]

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