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Mumuxili Instrument said, "Let's talk about rotary evaporation in detail. Come and see!"! _ Condensation Emploi Plein temps

28 nov. 2022 à 2h27   Ingénierie   Saint-Louis   241 vues Référence: 84
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 what is the boiling point range of solvents, and whether these solvents are flammable, explosive or toxic and harmful. After determining the experimental requirements and the type of solvent to be distilled, the rotary evaporator can be purchased. In fact, six issues need to be considered when choosing a rotary evaporator: 1. Core technology of rotary evaporator Whether the system can maintain a high degree of vacuum under the corrosion of various solvents and in the state of motion is the most important standard to measure the rotary evaporator. It is sealed with Teflon material and glass, which can resist various solvents, has lasting and reliable air tightness, and can maintain a high degree of vacuum above -0.098 MPa. 2. Factors affecting the efficiency of rotary evaporator For machines of the same specification, there are mainly steam temperature, vacuum degree and cooling water temperature. Restricted by the heat resistance of some materials, it is impossible to increase the steam temperature indefinitely during operation, so high vacuum degree and low cooling water temperature are the two main factors to improve efficiency. 3. Difference between vertical condenser and inclined condenser Vertical condensers are becoming popular because of their small footprint. Large capacity evaporators generally use vertical condensers, but there is essentially no difference between the two instruments. 4. Model selection of rotary evaporator 2L, 3 L, 5L machines are suitable for laboratory and small sample test; 5L, 10 L, 20 L are suitable for pilot test; 20 L, 50 L are suitable for pilot test and production, especially for the extraction of materials that need to avoid metal ion pollution. 5. Rotary evaporator and other types of evaporators The rotary evaporator has the advantages of compact structure, high efficiency, rotary vacuum evaporator ,wiped film distillation, intuitive operation and no metal ion pollution. It is suitable for laboratory,  Alternatively, anti-boil particles may be adde to that sample. For samples that are particularly difficult to distill, including those that are prone to foaming, the rotary evaporator can also be equipped with a special condenser tube. (Source: Experiment and Analysis) Mumuxili Instrument said that all liquid phase veterans know this. Daily maintenance of pipette: teach you how to disassemble and assemble correctly How to obtain the ideal standard curve? Special statement: The publication of this article is only for the purpose of disseminating information, and does not represent the views of this public account; if other media,rotovap distillation, websites or individuals reprint and use from this public account, please apply to the original author, and bear the copyright and other legal responsibilities. Return to Sohu to see more Responsible Editor:.

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