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Training Paper - Distillation with a Rotary Evaporator

Training Paper - Distillation with a Rotary Evaporator

A rotary evaporator is a specially designed instrument for the evapora-tion of solvent (single-stage or straight distillation) under vacuum. The ... Bumping and foaming are greatly reduced by the rotation. Distillation of solvent Concentration of solutions and suspensions2

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Rotary Evaporator Bump Traps at Thomas Scientific

Rotary Evaporator Bump Traps at Thomas Scientific

Adapters, Rotary Evaporator Bump Trap, Fritted, R200 and R205. Chemglass. Vapor tube/bump trap adapter is designed to be used with the Bchi R-200/205 rotary evaporators. This adapter combines a vapor tube adapter and a bump trap. Trap has an extra coarse fritted disc sealed between the lower inner joint and the top flange.

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Cooking with a Rotary Evaporator? LabTech

Cooking with a Rotary Evaporator? LabTech

Aug 08, 2017 It is a matter of fact that experienced chemists carefully regulate the power of the vacuum or play with the bath temperature or thoroughly set the evaporation rate in order to avoid or drastically reduce the risk of bumping, occasionally associated with foaming. Since its invention the rotary evaporation technique has been growing and ...

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BUMP TRAPS - VWR International

BUMP TRAPS - VWR International

Bench Scale Rotary Evaporators When using a bench top rotary evaporator there is always a chance the solution may foam, splash, or bump from the flask. This always results in a large mess which contaminates the condenser and receiving flask, requiring a time-consuming clean up. For safety and prevention, the solution is to insert a bump trap ...

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Rotary Evaporator Manufacturer Exporter

Rotary Evaporator Manufacturer Exporter

BioGene ROTARY EVAPORATOR ⇒ The apparatus consists of an evaporating flask rotated by heavy duty motor in a heating water bath. ⇒ Fitted with speed regulator for minor speed adjustments. ⇒ Vacuum distillation of solvent at high and low temperature is achieved quickly and efficiently by use of a heavy duty motor, which prevents foaming and bumping of the liquid …

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Rotary Traps Fisher Scientific

Rotary Traps Fisher Scientific

Bump Trap, 100mL, Rotary Evaporator, Modified, 24/40 Top Outer, 14/20 Lower Inner. Trap provides expanded volume for reactions that have a tendency to foam excessively. The inner vapor tube is sealed to the top of the trap to prevent entry into the condenser. Traps have a 24/40 top outer joint and the listed size of lower inner joint.

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RE-2002 20L large scale rotary evaporator 20 liter

RE-2002 20L large scale rotary evaporator 20 liter

Bumping and foaming are greatly reduced by the rotation. RE-2002 rotary evaporators are used for: 1.Distillation of solvent. 2.Concentration of solutions and suspensions. 3.Crystallization or recrystallization. 4.Synthesis and purifying of fine chemicals. 5.Soxhlet extraction.

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Chemglass Rotary Evaporator Bump Traps Self Washing

Chemglass Rotary Evaporator Bump Traps Self Washing

Chemglass Rotary Evaporator Bump Traps Self Washing Trap is designed to eliminate hold up common to the round style of rotary evaporator traps. Tapered sidewalls permit continuous washing with condensed solvent while preventing vapor cooling points along the path of the condenser. The upper stem has 4 large holes flush with the lower end, allowing solvent vapor …

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Rocket and Rocket 4D Evaporators - LabRepCo LLC

Rocket and Rocket 4D Evaporators - LabRepCo LLC

evaporators and is capable of replacing several rotary evaporators, saving much valuable bench space. Rocket controls are very easy to use. Load your samples, select the correct method, press start and walk away. The evaporator is equipped with high performance features that prevent foaming, bumping and cross contamination. A built-in, two-stage

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Evaporator Vacuum/Distillation Controller - Buchi B-721 - Buchi Rotary Evaporators ...

Evaporator Vacuum/Distillation Controller - Buchi B-721 - Buchi Rotary Evaporators ...

Helps reduce bumping and foaming in rotary evaporators and other distillation apparatus by controlling the amount of vacuum applied from 1 to 1200mbar. Adjustable hysteresis allows tight control of distillation process, ensuring optimum operation.

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Evaporator Vacuum/Distillation Controller - Buchi B-721

Evaporator Vacuum/Distillation Controller - Buchi B-721

Helps reduce bumping and foaming in rotary evaporators and other distillation apparatus by controlling the amount of vacuum applied from 1 to 1200mbar. Adjustable hysteresis allows tight control of distillation process, ensuring optimum operation. Compact unit mounts directly on scaffolding or support rod with supplied adjustable clamp.

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Foam is foe in rotary evaporation. Here is how to prevent it.

Foam is foe in rotary evaporation. Here is how to prevent it.

Jan 20, 2021 The only way to prevent foam manually is to stay in front of your rotary evaporator the entire time and manually break the vacuum with the stopcock until the problem is solved. As you can image, this could be a rather tedious and time-consuming process. So let us instead explore what technologies, besides an interface-controlled system, are ...

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How to Minimize Bumping and Foaming Blog -

How to Minimize Bumping and Foaming Blog -

Jun 26, 2017 Anti-foam agents can be added to prevent foaming and a larger flask can be used to ensure that the foam stays in your evaporation flask. For bumping you can add agents, such as boiling chips, which make the boiling more uniform. To prevent contamination and sample loss from bumping or foaming, a bump trap or a foam brake can be installed. This secondary …

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Vacuum pumps for rotary evaporation - VACUUBRAND

Vacuum pumps for rotary evaporation - VACUUBRAND

Nov 25, 2016 Remember, when the condenser on your evaporator is 20 degrees Celsius cooler than your sample, it will condense most of the vapors leaving the evaporator. ... Too much vacuum can cause foaming and bumping, and too little vacuum will slow your evaporations. ... For help selecting a pump for your rotary evaporator, ...

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HEIDOLPH Rotary Evaporator Vacuum: rpm Regulated 5 mbar 1700L/hr 160 W - Grainger

HEIDOLPH Rotary Evaporator Vacuum: rpm Regulated 5 mbar 1700L/hr 160 W - Grainger

Operates without vacuum valve. 3-stage pump features precise vacuum control to avoid bumping and eliminates foaming of evaporation solution. Chemical resistant. View More. Tap image to zoom. Roll over image to zoom. Product Image Feedback. HEIDOLPH. Rotary Evaporator Vacuum: rpm Regulated, 5 mbar, 1700L/hr, 160 W Item # 36RM93; Mfr. Model ...

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Rotary Evaporator Bump Traps Chemglass - VWR

Rotary Evaporator Bump Traps Chemglass - VWR

Rotary Evaporator Bump Traps, Chemglass. 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. Modified bump traps provide expanded volume for reactions that have a tendency to foam excessively.

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Bump Trap 250mL Rotary Evaporator Modified 24/

Bump Trap 250mL Rotary Evaporator Modified 24/

ROTARY EVAPORATOR BUMP TRAPS, MODIFIED Trap provides expanded volume for reactions that have a tendency to foam excessively. The inner vapor tube is sealed to the top of the trap to prevent entry into the condenser. Traps have a 24/40 top outer joint and the listed size of lower inner joint. CG-1322 Bump Traps are available Plastic Coated.

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ROTARY EVAPORATOR BUMP TRAPS - Chemglass

ROTARY EVAPORATOR BUMP TRAPS - Chemglass

ROTARY EVAPORATOR BUMP TRAPS. AddThis. 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. Bump Traps are available Plastic Coated.

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ROTARY EVAPORATOR BUMP TRAPS I - Ace Glass

ROTARY EVAPORATOR BUMP TRAPS I - Ace Glass

ROTARY EVAPORATOR When using a bench top rotary evaporator there is always a chance the solution may foam, splash, or bump from the flask. This always results in a large mess which contaminates the condenser and receiving flask, requiring a time-consuming clean up. For safety and prevention, the solution is to insert a bump trap between the flask and vapor duct,

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Rotary Evaporator-Rotary Evaporator - laboratorydeal

Rotary Evaporator-Rotary Evaporator - laboratorydeal

Rotary Evaporator. The apparatus consist of an evaporating flask rotated by non sparking induction motor in a heating water bath. Vacuum distillation of solvent at high and low temps. is achieved quickly and efficiently by use of fixed speed motor, which prevents foaming and bumping of liquid solvent into evaporating flask and also distillation under controlled atmosphere.

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Evaporator Resource Guide - Lab Manager

Evaporator Resource Guide - Lab Manager

Rotary evaporators: Must-have features; How to deal with solvent bumping and foaming during lab evaporation; Looking beyond the rotovap for evaporator selection in the lab; Download the Resource Guide . Lab Manager needs the contact information you provide to us to contact you about our products and services. You may unsubscribe from these ...

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Rotary Evaporator Trap at Thomas Scientific

Rotary Evaporator Trap at Thomas Scientific

Synthware Rotary Evaporator Anti-Splash Traps, Modified. Kemtech America. Trap is placed between the vapor tube and the evaporation flask. This design prevent possible contamination in the event of bumping. With two 4mm drain holes at the base of the inner tube to allow solvent to drain back into the evaporation flask.

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Bumping In Rotovap

Bumping In Rotovap

The Rotary Evaporator. known as 'bumping - an intermittent, uncontrolled boiling. The on-off switch is located at the upper left on the rotovap motor and the speed control knob below it. You need not set the rotation speed of the flask at maximum; however, you must rotate the flask to prevent bumping at reduced pressure. 6.

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Rotary Evaporator Bump Traps - Safety Emporium

Rotary Evaporator Bump Traps - Safety Emporium

These are the most traditional rotary evaporator bump bulbs/traps which are used between the vapor tube and evaporation flask on a rotary evaporator to prevent the contents of the flask from being drawn into the condenser in the event of solvent bumping. The lower stem has 2 large holes; see CG-1321 and CG-1322 for modified/improved versions.

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Vacuum Pumps for Rotary Evaporator - welch

Vacuum Pumps for Rotary Evaporator - welch

With ultimate vacuum levels from 75 mbar(56 torr) to 1 mbar(0.75 torr), flow rates up to 138 l/min there is a pump for all rotary evaporator applications and sizes. All MPC models come with a gas ballast valve to han-dle high vapor loads and can be used to stop accidental bumping/foaming. Contact Us to Order MPC Chemical Duty Pumps. Request a Quote

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