Our Products

Rotary Evaporator

Laboratory equipment

Jacketed Reactor

Contact Us

We Cherish All Interactions

Your Evaporation Guide Operation Rotation speed

Even 50 years after the launch of the first rotary evap-orator, there is much ambiguity concerning evapora-tion in the rotating evaporating flasks. Figure 1: First generation rotary evaporator (BUCHI Rotava-por, Model 1957). Even nowadays, evaporation and distillation are still one of the most frequently used separation methods.

Laboratory Rotary Evaporation Solutions | buchi.com

The R-100 rotary evaporator is an entry level Rotavapor® to meet the essential needs in evaporation and BUCHI's high quality standards. Interface I-300 Pro The Interface I-300 Pro offers a 7" touch screen to control and view all process parameters at a glance.

Ai SolventVap 0.5 Gallon Rotary Evaporator Manual

(azeotropic behavior) and a sufficient difference in boiling points at the chosen temperature and reduced pressure. The new Ai SolventVap 0.53 gallon / 2L series rotary evaporators come with a modular heating bath, vertical glassware, and digital temperature/rotation control.

Why a Rotary Evaporator Won't Hold Vacuum and What to Do .

Jan 12, 2018 · Less pressure mean more volume, and many rotary evaporator applications operate at very low pressures. The rate at which gas is being produced due to evaporation is important because all vacuum pumps have a maximum volume of gas they can remove per unit of time.

IKA Rotary Evaporators Rotary evaporator distilling .

Rotary Evaporators IKA rotary evaporators set new standards for safety, efficiency and ease of use. These rotovaps offer excellent distilling solutions to the demanding user. All IKA RV 10 rotovapors are equipped with a motorized lift with safety stop function. The comprehensive safety features also include interval operation, smooth start, end .

Buchi R-200/R-210 Rotavapor

Page 2 of 2 Rotary Evaporator Last updated: 06/03/2018 Using a rotary evaporator 1. Turn rotary evaporator on – there are 2 switches, one for water bath, one for rotation. 2. Set water bath to an appropriate temperature for the solvent being evaporated, this is not the boiling point of the solvent (see table for details). Turn the water tap .

TD of Refrigeration Evaporators - HVAC School

Apr 29, 2018 · Superheat is the temperature (sensible heat) gained between the point that all of the liquid boiled off in the evaporator coil and the suction line at the outlet of the coil. in refrigeration, like HVAC 10°F(5.5°K) of superheat is average with a range from 3°F to 12°F(1.65°K – 6.6°K) depending on the equipment type (10°F(5.5°K) for .

rotary evaporator manual - Rotovap

Rotary evaporator is a very popular separation equipment, which is widely used in many fields. Rotary evaporator is so popular because it has many advantages, for example: 1. Rotary evaporator has a built-in lifting and falling motor. This device can automatically raise the rotary bottle to a position above the water bath when there [.]

How to use a Rotary Evaporator

A typical rotary evaporator has a water bath that can be heated in either a metal container or crystallization dish. This keeps the solvent from freezing during the evaporation process. The solvent is removed under vacuum, is trapped by a condenser and is collected for easy reuse or disposal.

Vacuum evaporator - All industrial manufacturers - Videos

This rotary evaporator is developed by J.P Selecta. It is designed to be compact, with a casing made of AISI 304-grade Stainless Steel materials. The evaporator uses an extra-soft manual elevator system .

Rotary Evaporators for sale

5L Rotavapor RE501 Rotary Evaporator Heating Water Bath Motorized Lift Glassware 1,089.96 Rotary Evaporator 2l, 0-200rpm Digital display temp 0-180℃ Automatic Lifting US

Evaporators | Fisher Scientific

A vacuum system (to create negative pressure that draws the vapor) A condenser (to contain the vapor and facilitate condensation) A collection flask (to gather the condensate) A lift mechanism (to move the vessel in and out of the heating bath) Most commercially available rotary evaporators incorporate most of these basic features.

Rotary Evaporation - Chemistry LibreTexts

Rotary evaporation is the process of reducing the volume of a solvent by distributing it as a thin film across the interior of a vessel at elevated temperature and reduced pressure. This promotes the rapid removal of excess solvent from less volatile samples.

Rotavapor® R-300 | buchi.com

Convenient and efficient rotary evaporation . . Thus, the pressure has to be increased or the cooling temperature of the condensation assembly decreased. Downloads. Rotavapor® R-300 Product Brochure en (923 K) Laboratory Rotary Evaporation Solutions Brochure en (4614 K) Rotavapor® R-300 Technical data sheet en (5439 K)

Ai UL/CSA SolventVap 5.3G/20L Rotary Evaporator w/ Chiller .

Example:The following table is a list of a variety of substances ordered by increasing vapor pressure (in absolute units). The newly re-designed Ai SolventVap 5.3-gallon/20L/0.7 cu ft (evaporating flask capacity) series rotary evaporators come with all PTFE valves for solvent-resistant operations.

Why a Rotary Evaporator Won't Hold Vacuum and What to Do .

Jan 12, 2018 · Less pressure mean more volume, and many rotary evaporator applications operate at very low pressures. The rate at which gas is being produced due to evaporation is important because all vacuum pumps have a maximum volume of gas they can remove per unit of time.

Rotary Evaporator Ethanol Extraction - Coldfinger .

Oct 11, 2019 · Rotary evaporators allow many configurations depending on the use. A diagonal glass condenser is common for standard distillation of non-volatile substances. Vertical class condensers allow solvents with higher boiling points. For ethanol extraction with dry ice, a rotary evaporator with a cold finger glass condenser is ideal.

JKEM J-KEM DVR-200 Digital Vacuum Regulator

Solvent recoveries from a typical rotary evaporator are shown in the table below. Test Conditions: Buchi RE 111 evaporator equipped with a dry ice condenser. Vacuum pump ultimate pressure = 0.01 torr. All tests were conducted using a 500 ml round bottomed flask at the pressure shown.

Rotary Evaporator - The Laboratory Store

A rotary evaporator (or rotavap [1] / rotovap ) is a device used in chemical laboratories for the efficient and gentle removal of solvents from samples by evaporation. When referenced in the chemistry research literature, description of the use of this technique and equipment may include the phrase "rotary evaporator", though use is often rather signaled by other language (e.g., "the sample .

Vacuum pumps for rotary evaporation- Vacuum Pump - EVP .

Rotary evaporator is mainly used for distillation and purification, but usually the rotary evaporator can only be used under negative pressure cond. Email : [email protected]; 24hours hotline : +86-13916614261 . The circulating water vacuum pump is divided into table type and vertical type. Rotary vane vacuum pump is commonly used in .

The "Golden Rule" for Solvent Removal

The use of a rotary evaporator in this process has become ubiquitous for single batch and continuous processes. Most . ultimate vacuums without control or knowledge of the pressure, the use of secondary condensers, problematic bumping and the use of bump traps. . value is chosen easily from a chart.

Rotary Evaporator Ethanol Extraction - Coldfinger .

Oct 11, 2019 · Rotary evaporators allow many configurations depending on the use. A diagonal glass condenser is common for standard distillation of non-volatile substances. Vertical class condensers allow solvents with higher boiling points. For ethanol extraction with dry ice, a rotary evaporator .

Vacuum Pump For Rotary Evaporator at Thomas Scientific

.the operating pressure in the vacuum chamber. Included with each RV 10 control system. Power: 24 V / 9 W Weight: 0.142 kg Integrated check valve: yes Thomas No. 1203D10 One rotary evaporator at one pump/tabletop operation. The pump only works when vacuum is needed - leading to a savings.

Rotary Evaporator--Biobase Meihua, professional laboratory .

Rotary Evaporator This product can form film under constant temperature heating and negative pressure conditions.Owning to its efficient evaporation and condensation recovery of menstruum,the product is employed in biological,medical,chemical and food industries, especially for operations of heat-sensitive materia.

ORGANIC LABORATORY TECHNIQUES 8 8.1 ROTARY .

If the flask neck size doesn't match the joint on the rotary evaporator, then a reduction adaptor needs to be used. Start the flask rotating. Place your finger or thumb over the vent hole and use it to control the vacuum. If the sample starts to boil to vigourously, release the pressure by removing your finger. Once the boiling has stopped, reapply

Standard Operating Procedure - Rotary Evaporator

Rotary Evaporator in the P.O.W.E.R. Laboratory Elliot Sepos, April 2012 Description of Process Some chemical procedures require a quick and effective separation of substances through evaporation. The Rotary Evaporator is a tool which puts the separable substance under vacuum and heats evenly through a spinning motion, causing one component to .

Heidolph Instruments : Rotary Evaporators

All Hei-VAP rotary evaporators have a safety heating bath with overheating and dry running protection, ergonomic handles, double wall and an integrated spout . Universal heating bath for all flask sizes up to 5 l (no retooling required). The sturdy metal connection to the device's base allows variable distances for the heating bath up to 200 .

Rotary Evaporator - Rotavapour Latest Price, Manufacturers .

We are leading manufacturer, exporter and supplier of rotary evaporators. We offer rotary evaporators in capacities such as 1-2 ltr, 5 ltr, 10 ltr, 20 ltr, 50 ltr and 100 ltr. Additionally, they are available in GMP as non GMP standards. Super Rotary Evaporators .

Rotary evaporator troubleshooting

Rotary evaporators are mainly used in such fields as Evaporation, Distillation, Separation of chemicals, Drying powder materials in the rotating bottle and Crystallization. When rotary evaporators can't work normally, please refer to the following table to solve common failtures which may occur.

Title: Rotary Evaporator Page 1 of 6 ROTARY EVAPORATOR

Rotary evaporators (also called "rotavaps" or "rotovaps") are used to remove solvents from reaction mixtures. Liquid solvents can be removed without excessive heating of the sample by lowering the pressure above a bulk liquid and thus lowering the boiling points of the component liquids in it. This