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Standard Operating Procedure Task: Rotary Evaporation

Standard Operating Procedure Task: Rotary Evaporation

2. Check that the water level of the heating bath is at least full. Refill the bath only with distilled water. 3. Check that the vent valve (glass or vacuum valve) is open to air. 4. Attach the bump (splash) trap to the joint on the rotator of the rotovap using a clip; then connect your round-bottom flask to the bump trap using a second clip.

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The Rotary Evaporator

The Rotary Evaporator

2. Next, cold water is circulated through the rotovap condenser to condense the volatile solvent on the condenser coils and to prevent, as much as possible, the volatile solvent from vaporizing into the aspirator. Ice and a small amount of water are placed in the water-circulating pump. The circulating pump is plugged in. 3.

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Chapter 14: Solvent Removal

Chapter 14: Solvent Removal

2. Prepare the rotovap. Using the handle, raise up the core part of the rotovap assembly. If the solvent trap is more than half-full, detach it and empty it into the organic waste. Check that the rotovap’s bump trap and adapter are clean. If the sample will become a free-flowing powder after the solvent is removed (for instance, if you are

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How to use a Rotary Evaporator

How to use a Rotary Evaporator

Apr 01, 2010 The best protocol is a regular exchange of the water. To remove algae gunk from the inside of a coiled water condenser, the condenser has to be removed from the rotavap and the coil is soaked in a dilute nitric acid solution for a few hours. After carefully rinsing the insides, the rotavap is reassembled.

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Failures and Troubleshooting of a Rotary Evaporator - Rotovap

Failures and Troubleshooting of a Rotary Evaporator - Rotovap

Aug 08, 2019 A rotary evaporator is an indispensable equipment for evaporation, concentration, crystallization, drying, separation, and solvent recovery in many fields, and it is mainly used for continuous distillation of large amounts of volatile solvents under reduced pressure. Giving consideration to its importance, it’s necessary to learn something about …

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How does a Rotary Evaporator Remove Solvent? - Rotovap

How does a Rotary Evaporator Remove Solvent? - Rotovap

Aug 09, 2019 Fill the rotovap cold traps with dry ice. Attach a glass “bump trap” to prevent any solution from entering the main part of the rotovap. Secure with a clip. Connect the flask and bump trap to the adaptation part with a clip. Lower the flask into the water bath, preventing the flask from disconnection. 2.

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Home Environmental Health Safety UCI

Home Environmental Health Safety UCI

Connect the bump trap to the rotovap and secure with the metal clip or a keck clip depending on the model of rotovap (pictured below). The bump trap should be kept clean, it provides a receptacle in case the solution splashes or boils beyond the flask. A clean bump trap can allow for recovery of any solution that “bumps”.

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Rotovap Rotovap Technology Supplier - Ecodyst

Rotovap Rotovap Technology Supplier - Ecodyst

Feb 21, 2021 This will ultimately become the standard rotovap in labs and industries worldwide. I see a future where this self-cooling rotovap technology replaces all water, dry ice and chiller rotovaps in the world. In the future, it will be odd to purchase a traditional rotovap that has associated material waste.

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What is Rotary Evaporator Working Principle? - Rotovap

What is Rotary Evaporator Working Principle? - Rotovap

Feb 27, 2019 b. Fill the rotovap cold traps with dry ice. c. Attach a glass “bump trap” to prevent any solution from entering the main part of the rotovap. Secure with a clip. d. Connect the flask and bump trap to the adaptation part with a clip. e. Lower the flask into the water bath, preventing the flask from disconnection. 2. Operation

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Rotavaping DMF - MJLPHD

Rotavaping DMF - MJLPHD

Jan 10, 2014 With the water bath at 55 C the vacuum will need to be lowered to 25 Torr; at 70 C the required vacuum is only 25 Torr. A 100 mL pre-weighed flask and a 500 mL non-reversible splash-guard attached to a rotary evaporator. The utility of the non-reversible splash-guard is not so much the prevention of mess or loss from bumping, rather that it ...

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How to Minimize Bumping and Foaming Blog

How to Minimize Bumping and Foaming Blog

Jun 26, 2017 Bumping occurs when a sample boils rapidly, forming bubbles that cause the sample being concentrated to splash out of the flask. This is normally caused by heating too quick or applying too strong of a vacuum. The chances of it causing damage and splashes into the rotovap are increased if your evaporation flask is more than half full. Go slow, start with little …

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How to use a rotovap

How to use a rotovap

Mar 26, 2019 Carefully lower the flask into the water bath. The solvent should condense and drip down into the flask. If the water bath is at too high temperature or the vacuum is too strong or if the flask is not rotating fast enough a bumping will occurs. To relieve the bumping, reduce the vacuum using the air bleed.

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What is a bump trap? -

What is a bump trap? -

May 11, 2020 Bump Traps Chemglass. Used between the vapor tube and evaporation flask on a rotary evaporator to prevent contents of the flask from being drawn into the condenser in the event of “bumping.” Traps have a 24/40 top outer joint and the listed size of lower inner joint.

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Rotary Evaporation in the Kitchen - Cooking Issues

Rotary Evaporation in the Kitchen - Cooking Issues

May 19, 2009 Put the thermometer from the rotovap unit into the water bath. Clean the vapor duct area and install the vacuum seal. Install a DRY evaporation flask. Close off (seal) the receiving flask/pump takeoff area. Close the product in/air vent valve. If some numbskull turned the bath on without water, you€™ll need to reset the bath.

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How can i evaporate a solvent without rotary - ResearchGate

How can i evaporate a solvent without rotary - ResearchGate

Most recent answer. 6th Aug, 2021. Nazmul Hosen. University of Southern Mississippi. Take your solvent into a side-arm flask and seal properly to get …

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Rotary Evaporator Bump Traps Chemglass - VWR

Rotary Evaporator Bump Traps Chemglass - VWR

Rotary Evaporator Bump Traps is used between the vapor tube and evaporation flask on a rotary evaporator to prevent contents of the flask from being drawn into the condenser in the event of bumping.Placing vacuum traps between an apparatus and vacuum source establishes a safe and controlled working system. The glassware protects the pump from the separated solvents …

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Rotary Evaporator Only Information

Rotary Evaporator Only Information

The water bath temperature should not exceed the boiling point of the solvent! • The condenser could be overloaded since the evaporation rate will exceed the condensation capacity. Cannabis extracts require lower water bath temperatures (≈40 degrees Celsius). Oil baths can hold a higher temperature range than water baths.

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Rotary Evaporator Bump Traps Fritted Disc

Rotary Evaporator Bump Traps Fritted Disc

These bump traps have an extra coarse fritted disc sealed between the lower inner and top outer joint to prevent the contents of the flask from bumping into the condenser. This is a convenient, space-saving design good for cramped dry boxes, for example. The top outer joint is a 24/40 standard taper. The bottom standard taper inner joint is available in 14/20, 24/40 or 29/42 sizes.

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