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Vacuum Pumps | Fisher Scientific

View our Vacuum Pumps products at Fisher Scientific. Sign Up for Email Customer Service +1 800-234-7437 [email protected]

Rotary Vacuum Evaporator at Thomas Scientific

.for vacuum filtration up to 2 funnels, rotary evaporation of volatile solvents (35° evaporation for atmospheric B.P. solvents to 80°C), and other routine laboratory vacuum processes requiring chemical resistance. Models 2034 & 2044 DryFast models delivery 9 torr vacuum for rotary.

the Energy of Evaporation | A Lab Investigation

evaporation is a phase change that absorbs energy. During evaporation, some fast-moving, highly energetic molecules have enough energy to over-come the attractions that individual molecules have for one another and enter the gas phase. As these high-energy molecules leave the liquid phase, the average energy of the remaining liquid

The basis of vacuum evaporation - Environmental engineering

Vacuum evaporation concept. Vacuum evaporation is a technique which is characterized by transforming liquid effluent into two flows, one of high quality water and the other comprising a concentrated waste. The water obtained is of sufficiently high quality to be re-used, whereas the waste can be concentrated, even reaching almost total dryness.

Evaporators for Sale | New and Used Equipment

From thermal evaporators to high vacuum resistive evaporators, with various vapor deposition processes, knowing your evaporation systems are in excellent condition is important. When you need reliable evaporation, from carbon to metals, you need machinery you can trust - and that's doubly true for second-hand equipment. You need to know your pre-owned refurbished evaporators aren’t .

Vacuum Evaporation - Wake Forest University

the vacuum chamber with a heater. • Seal and evacuate the chamber. • Heat the source. When the temperature reaches the evaporation temperature, atoms or molecules start to leave the surface of the source and travel in a more or less straight path until they reach another surface (substrate, chamber wall, instrumentation). •


Commonly used solvents have different boiling points and vacuum evaporation levels, if the vacuum is not properly controlled, a risk of too rapid or too slow evaporation could occur reducing recovery of vapors. To optimize the whole process, an electronic vacuum .

Laboratory Rotary Evaporation Solutions - Lab Instrument .

A motor unit that rotates the evaporation flask or vial containing the user's sample. A vapor duct that is the axis for sample rotation, and is a vacuum-tight conduit for the vapor being drawn off the sample. A vacuum system, to substantially reduce the pressure within the evaporator system. A heated fluid bath (generally water) to heat the .

How to select lab vacuum pumps for high vapor-flow .

Apr 27, 2017 · Pumps used with high vapor-load applications are best equipped with inlet separators. Related Article: "How to select the correct Cold Trap" by Jenny Sprung During laboratory evaporation, the main function of the Cold Trap is to collect harmful vapors before they enter the vacuum .

Antibodies & Protein Biology - Lab Equipment and Lab Supplies

Evaporation Flask Capacity: 1L. Apply premium stainless steel, imported electronic devices and high temperature resistant glass, durable and safe on use. No brush .

Laboratory high vacuum thermal evaporation coating machine .

ZZ4-300G High Vacuum Thermal Evaporation Coating Machine Leadmed. Application: Laboratory vacuum coating machine. Used for Preparation of conductive thin film, semiconductor thin film, optical thin film; can be coated for single layer, multiplayer and composite films by control of the switch of evaporation sources; Technical Performance

Vacuum Evaporation of Pure Metals | SpringerLink

Oct 17, 2012 · Theories on the evaporation of pure substances are reviewed and applied to study vacuum evaporation of pure metals. It is shown that there is good agreement between different theories for weak evaporation, whereas there are differences under intensive evaporation conditions. For weak evaporation, the evaporation coefficient in Hertz-Knudsen equation is 1.66.

Vacuum Equipment - Chemistry LibreTexts

Vacuum equipment is used to generate, maintain, and manipulate pressures below that of the ambient atmosphere. Many common lab procedures require vacuum conditions, such as inert gas purging, cannulation, and solvent evaporation. Vacuum equipment often requires special care to maintain.

Kurt J. Lesker Company | Power of Collaboration | Vacuum .

With the dramatic growth expected in many industries which require high temperature vacuum systems such as space simulation systems, 3D printing of metal components, the manufacture of single crystals for the LED and semiconductors and others, alternatives to traditional water cooling approaches may offer performance gains coupled with reduced .

How to Evaporate or Concentrate Heat . - Lab Manager

Although there is a wide variety of laboratory equipment that evaporate samples in different ways, the common denominators are that evaporation is occurring as a result of heat input, increased surface area, and vacuum or vapor pressure differential.

Vacuum Equipment, Products and Supplies

Vacuum Desiccators Vacuum Storage Containers Substrates, Specimen Supports Silicon, Mica, Quartz, Gold Coated products: Bullseye and P-100 Pirani Digital Vacuum Gauge High Purity Materials and Wires for Vacuum Evaporation Deposition Vacuum Evaporation Sources Filaments, Wire Baskets,

Laboratory Rotary Evaporation Solutions | buchi.com

It operates at the maximum flow rate of 3.1 m 3 /h and achieves an ultimate vacuum of 1.5 mbar. Thanks to its high flexibility, the Vacuum Pump V-600 can be integrated effortlessly into any BUCHI laboratory or industrial evaporator for utmost efficiency.

: Rotary Evaporators - Evaporators & Accessories .

Rotary evaporators, sometimes called rotavaps, are used in research and laboratory facilities to distill or concentrate solutions. Rotary evaporators rotate a solution that is placed in a heated bath. A vacuum is used to remove the evaporated fluid, which is processed and returned to a liquid for analysis.

Vacuum evaporation - Wikipedia

Vacuum evaporation is the process of causing the pressure in a liquid-filled container to be reduced below the vapor pressure of the liquid, causing the liquid to evaporate at a lower temperature than normal. Although the process can be applied to any type of liquid at any vapor pressure, it is generally used to describe the boiling of water by lowering the container's internal pressure below .

How to Select a Vacuum Pump for Rotary Evaporation? - Lab .

Optimum vacuum level shortens evaporation times and provides superior product yields. Control of the vacuum also reduces bumping and enables greater solvent recovery and repeatability. Manual vacuum control involves the use of a stop cock or manual valve to adjust the vacuum level based on visual cues.

Tube Furnace, Muffle Furnace, Dental Zirconia Sintering .

Zhengzhou CY Scientific Instrument Co., Ltd. Staff Management Training Apr. 29, 2019. n the morning of April 27, 2019, our company invited Mr. Dou, a well-known marketing and management consultant, career planner and training instructor, to conduct professional management training for all employees of the company according to the actual situation of the company.

China Rotary Evaporation Rotovape Lab Vacuum Distillation .

China Rotary Evaporation Rotovape Lab Vacuum Distillation Equipment 5L Liters, Find details about China Rotary Evaporation Equipment, Rotovape from Rotary Evaporation Rotovape Lab Vacuum Distillation Equipment 5L Liters - Zhengzhou Keda Machinery and Instrument Equipment Co., Ltd.

DV-502 high-vacuum evaporation - Media System Lab

A flexible evaporation and polverization system operating in high vacuum, compatible with a wide variety of applications. Sample preparation of high level for highly specialized users and professional laboratories.. The DV-502 Thermal Evaporation system .

Understanding Concentration and Evaporation Technology .

Newer, dry scroll pumps do not require any pumping fluid or lubricant and are suitable for use with evaporation and concentration systems. Dry scroll pumps (Figure 1) also provide high performance, down to pressures of 0.07 mbar at high flow rates, but with very low maintenance and minimal environmental impact compared with traditional vacuum pumps or tap aspiration.


VACUUM EVAPORATION EQUIPMENT & SUPPLIES. TED PELLA, INC. . furnaces, or as backing pumps for high vacuum turbo or diffusion pumps. Model. RVP 100-3.5 RVP 200-7.0: RVP 400-14: . Applications include laboratory vacuum equip-ment, air-out systems, vacuum desiccator, backing pump, coating systems, small freeze drying/vacuum food packaging and .

Lab Vacuum Pumps - Labconco

Diaphragm Vacuum Pumps are sized for use with CentriVap Centrifugal Concentrators, RapidVap Vacuum Evaporation Systems and Vacuum Desiccators. Rotary Vane Vacuum Pumps A general, economical rotary vane vacuum pump for a variety of laboratory .

BenchTop Turbo Thin Film Deposition Solution - Denton Vacuum

The flexible and compact BenchTop Turbo for thermal evaporation and sample preparation is a powerful, versatile high vacuum evaporation and sputtering system. It is a thin film deposition system capable of full-range, low-voltage (resistive) thermal evaporation and can produce fine-grained thin films via sputtering for high resolution .

High-vacuum Evaporation | Products & Suppliers .

Description: EVAPORATION TECHNOLOGY In a typical evaporative coating chamber, one or more racks hold the substrate material to be coated. The first step in the process is to pump all the air out of the chamber to achieve a very high vacuum (10-6 Torr or better). A succession of Functional / Performance: Abrasion Resistant, Antireflective, Chemical Resistant, Dielectric, Reflective

Vacuum Equipment - Chemistry LibreTexts

Vacuum equipment is used to generate, maintain, and manipulate pressures below that of the ambient atmosphere. Many common lab procedures require vacuum conditions, such as inert gas purging, cannulation, and solvent evaporation. Vacuum equipment often requires special care to maintain.

Eliminate HPLC Sample Preparation Bottlenecks with High .

The Genevac HT S3i evaporator enables high speed evaporation and lyophilization, reducing sample processing time from days to hours. This is achieved with a high-performance oil-free, vacuum pump, patented temperature control, and Dri-Pure anti-bumping technology to .