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PowerPoint Presentation

PowerPoint Presentation

Changing Vacuum Pump Oil. Ensure that the pump is off. Use screwdriver to remove the hose from the pump to the manifold. Place pump on bench top. Find an empty container for pump oil waste. Attach a latex or tygon tube to the drainage nozzle and open to allow the oil to flow out. Tilt the pump to drain the remaining oil.

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The General Use of Gloveboxes - Labideal

The General Use of Gloveboxes - Labideal

Feb 08, 2020 The glove box functions by containing a shut blood flow loop which utilizes aundefinedblower and plumbing related, along with a purifier to maintain H2O and O2 levels lower than 1 ppm. The atmosphere is purified by air circulation via a catalyst bed to eliminate moisture and O2. The catalysts consist of copper based contaminants to eliminate O2 and molecular …

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Freeze-Pump-Thaw - The Schlenk Line Survival Guide

Freeze-Pump-Thaw - The Schlenk Line Survival Guide

Freezing in liquid nitrogen. Step 3 – Pump: Once the contents of the Schlenk flask have frozen, open the stopcock to evacuate the headspace. Keep under vacuum for 3-5 minutes whilst submerged in liquid nitrogen. Evacuating the headspace. Step 4 – Thaw: Close the stopcock to seal the flask under vacuum and remove from the dewar of liquid ...

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Glovebox Technique - an overview ScienceDirect Topics

Glovebox Technique - an overview ScienceDirect Topics

In a glove box, 15 mL of toluene, 1.736 g (21 mmol) of 1-hexene were mixed together in a 100 mL two-necked round-bottom glass flask with a stirring bar. The flask was taken outside and attached to a Schlenk line, a well-purged ethylene line, and a mercury-sealed stopper.

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Gloveboxes - The Schlenk Line Survival Guide

Gloveboxes - The Schlenk Line Survival Guide

It is recommended to have three 5 minute cycles for the small antechamber, and three 15-20 minute cycles for the large antechamber. The latter can be automated for some glovebox models. Glassware, including vials and pipettes, introduced into the glovebox should be dried in an oven prior to use. Cycling items into the glovebox using the small ...

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Supporting Information General

Supporting Information General

Jan 25, 2007 The Schlenk flask was removed from the glove box and degassed with three freeze-pump-thaw cycles on a vacuum line. Using a known volume bulb attached to the vacuum line, a known amount of PMe 3 (0.54 mmol) was condensed into the flask at -196 C. The solution immediately turned orange and was stirred for 1 hour. The flask was brought into the ...

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Tips and Tricks for the Lab: Air-Sensitive Techniques (1)

Tips and Tricks for the Lab: Air-Sensitive Techniques (1)

May 07, 2013 The design of Schlenk lines varies from line to line, from lab to lab. There are, however, several key features that a Schlenk line will include (Figs. 1 and 2): Dual manifold. Inert gas inlet. Inert gas outlet via a bubbler. Vacuum pump. One or more cold traps for solvents. Taps to switch between gas and vacuum.

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Welcome to the Rodriguez Group!

Welcome to the Rodriguez Group!

MBraun glove box used as dry box. Refurbished VAC glovebox used as wet box. Vacuum line (~1 mTorr) for fast sealing of ampoules. Oxygen torch for sealing ampoules for solid state reactions. Schlenk line with trap and vacuum system consisting of an all-glass diffusion pump attached to an Edwards rotary vane pump. Mellen 1200 C large volume box ...

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0DWHULDO (6 IRUKHPRPP 7KLV

0DWHULDO (6 IRUKHPRPP 7KLV

mL Schlenk flask and transferred into a nitrogen filled glove box. 100 to 150 mL of pentane was added to the flask to dissolve the acid. The flask was sealed with a septum and was transferred onto a Schlenk line. In the nitrogen filled glove box, 2.25 grams (18.2 mmol) of diethyl zinc was

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About Us - Vacuum Pumps Singapore - Rooks Vac

About Us - Vacuum Pumps Singapore - Rooks Vac

With our extensive range of high end vacuum products to offer, Rooks Vac is ready to offer its utmost response and services as a complete one stop vacuum solutions provider for customers. We will be glad to discuss with you about your vacuum requirements anytime and anyday. Do contact us at +6567499983 or [email protected] soon !

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