rotovap ground glass stuck

experimental chemistry - How to remove a stuck stopper

2015-3-4 · Someone tried to open a flask containing pet ether using a flame to heat the stuck ground glass joint holding the stopper. I tend to use the hitting method on a wooden surface, use many gentle taps and keep on turning the flask around. I never use a modern plastic type lab bench. This method deals with most stuck joints on flasks and bottles.

glass rotovap - pool-solutions

USA Lab 5L Rotary Evaporator Turnkey Setup Rotovap RE-1005. The RE-1005 Evaporator is made with GG-17 High Borosilie Glass, and has been designed for efficient use of surface area.This means faster recovery without compromising quality.Our evaporators come standard with safety features such as over-temperature shut off and dry-run protection.All valves and …

glass rotovap - ballonintragastrique.fr

this adapter as seen in the photo can adapt any type condencer glass on glass fiting comes in four sizes: 24/40, 19/22, 29/42 & 44/50 please specify size by email . Rotovap® rotary evaporator F 007-5L . Unit is a 5L professional table top Rotovap . it …

Rotary Evaporator – Laboratory Glassware | Glass Work

The facility to work the unit under full vacuum further facilitates evaporation at as low temperature as possible. That is to say, both boiling point and residence time are significantly reduced. These features coined, renders rotary film evaporator to be ideally suited for evaporation of heat sensitive material.

DURAN® Evaporating Flask, 100 mL | DWK Life Sciences

Manufactured from 3.3 expansion borosilie glass. The florentine pear shape gives these flasks a large liquid surface area allowing more rapid evaporation. Ideal for use with rotary evaporators. Tight closure due to standard ground joint. Fired-on, highly durable white print. Find a distributor. alog Nuer: 241202707.

ORGANIC LABORATORY TECHNIQUES 8 8.1 ROTARY …

2013-10-3 · To use the rotovap, first make sure that the power is on (top right of the stand). Adjust the vertical position of the glass apparatus using manual lift knob control on the right side of the stand so there is plenty of space above the water bath. Check the temperature and level of the water bath. If more water is needed, top it up with distilled

Sciencemadness Discussion Board - Buchi rotovapor el131

2013-10-10 · I just recently got to set up and use an IKA RV-10 rotovap at work, and never having used one before I was amazed at how awesome it is. The advantages I''ve seen are 1) very efficient condensing of solvent, 2) gentle and even evaporation for fragile compounds, 3) pulling vacuum allows for lower temperature distillation (saving energy and time).

Choosing the right condenser - Chemistry Stack Exchange

2022-4-1 · In a Graham-type condenser (the right condenser in the picture below), the water flows around a tube (whether straight or coiled) that contains the vapor/condensed liquid. ( picture source) The Graham-type condensers clog (or flood) more easily since they have a more restricted path for the liquid to return to the pot.

Rotovap - Lab Instrument Manufacturer

2021-7-8 · Rotovap is a device for quickly concentrating liquid samples. The liquid sample is heated and decompressed in a spherical glass container, and …

Rotary Evaporator Glass Wares - Rotary Evaporator, …

Service Provider of Rotary Evaporator Glass Wares - Rotary Evaporator, Rotovap offered by Delonix Healthcare Private Limited, Hyderabad, Telangana.

glass rotovap. A high-pressure glass reactor is a chemical reaction vessel that can conduct a reaction under high pressure. The high pressure can

Dealing with Stuck or Frozen Glass Joints

Dealing with Stuck or Frozen Glass Joints. Look for uniform wetting of the ground joint surfaces, indiing liquid penetration and then try the methods listed above. If the frozen parts are quite small, place them in a beaker containing …

equipment - Glass joint stuck in flask - …

2019-7-10 · 3. Silicon grease on the ground glass joint. Use a heatgun on seized joints. – Waylander. Jul 10, 2019 at 21:07. Safety note: as you''ve apparently figured out, you should not apply heavy torque to a stuck glass joint with …

Rotary Evaporator common problems - rotovap …

2018-9-18 · Rotary Evaporator common problems and solutions. 1. Electric cabinet indior light (or digital display) is on, and check whether the connection line of the external plug inside the electric cabinet is loose and broken. 2. Electric cabinet indior light (or nuer display) is …

The Rotary Evaporator

2012-3-24 · partially-filled round bottom flask on the ground glass joint of the splash protector. b. Rotate the flask slowly. This will minimize bumping. Wait about 30 seconds. c. Lower the flask into the warm water bath. 9. When the solvent is removed, reverse the steps: a. Raise the flask from the warm water bath. Stop the rotation and open the

equipment - Glass joint stuck in flask - Chemistry Stack

2019-7-10 · 7. 3. Silicon grease on the ground glass joint. Use a heatgun on seized joints. – Waylander. Jul 10, 2019 at 21:07. Safety note: as you''ve apparently figured out, you should not apply heavy torque to a stuck glass joint with unprotected hands. Something like heavy leather gloves should be used.

How does a Rotary Evaporator Remove Solvent? - Rotovap

2019-8-9 · 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.

Distillation Adapter with 29/32 Ground Glass Joint

Distillation adapter with trap ball to prevent carry-over of reactions which have a tendency to foam or splashes during boiling processes, distillation among others. Complementary laboratory piece or accessory for asselies in laboratory equipment. Manufactured in borosilie glass with ground-glass male and standards ST 29/32.

What is a Rotary Evaporator? - Rotovap

2019-3-25 · A rotary evaporator (rotovap or rotavap) refers to a kind of equipment for solvent evaporation under reduced pressure, which is composed of a vacuum system, a heated water or oil bath, a condenser and a motor that rotates the …

rotovap glass - ballonintragastrique.fr

These rotovap glassware always been attached with residue solvents on inner glass wall. It will not easy to clean the rotovap glassware if not using for a long time or heating it for a long time. In a chemical laboratory, vacuum pump and chiller matching use with rotovap. dirty rotary evaporator glassware may cause misleading on experiment results.

Laboratory Glassware & Scientific Equipment …

Ace Glass Incorporated, founded 1936 in Vineland, NJ., is a leader and innovator in the manufacture of premium scientific glassware, lab equipment and glass apparatus. Over our long history, thousands upon thousands of scientific …

The Rotary Evaporator

2012-3-24 · partially-filled round bottom flask on the ground glass joint of the splash protector. b. Rotate the flask slowly. This will minimize bumping. Wait about 30 seconds. c. Lower the flask into the warm water bath. 9. When the solvent is removed, reverse the steps: a. Raise the flask from the warm water bath. Stop the rotation and open the

How do you unstick ground glass joints? - …

2020-1-8 · Unsticking glass to glass joints and stopcocks. If a freezer is not convenient, use a hair dryer or a similar type heat gun to gently heat the area. Again, wear gloves and gently twist apart. If you are fortunate enough to have a glassblower on site, let them dislodge the joint or stopcock. Click to see full answer.

How do you unstick ground glass joints? - …

2020-1-8 · Ground glass is glass whose surface has been ground to produce a flat but rough (matte) finish, in which the glass is in small sharp fragments. Ground glass surfaces have many appliions, ranging from ornamentation on windows and table glassware to scientific uses in optics and laboratory glassware .

Dealing with Stuck or Frozen Glass Joints

Dealing with Stuck or Frozen Glass Joints. Look for uniform wetting of the ground joint surfaces, indiing liquid penetration and then try the methods listed above. If the frozen parts are quite small, place them in a beaker containing …

Rotavapor® R-100 Operation Manual

2021-8-25 · Damaged glass components may implode if subjected to a vacuum. Minor damage to the ground joints impairs the sealing effect and may therefore dimin-ish distillation capacity. uu Handle the flask and other glass components carefully and do not drop them.Always place the flasks in a suitable holder when they are not mounted on the Ro-tavapor.

Ground Glass Jointed Glassware | Technical Information

Ground Glass Joint Dimensions. 24 – Diameter of the wide end of the ground joint (in millimetres) 29 – Length of the ground joint (in millimetres). Also known as the length of joint engagement. We are able to supply a range of different conical joint sizes from 5/13 to 60/64. Details on the types of Quickfit ® joints we can supply are as

How Do You Remove a Stopper? - ThoughtCo

2017-3-25 · David Submitted on 2013/05/07 at 11:40 pm I came across this site looking for suggestions on removing a stuck ground glass stopper in a small crystal jug. I tried the tapping method and, on the second attempt, the stopper flew off. I had previously soaked the jug in hot water so there may have been a slight build up of pressure which caused the stopper to fly off, …