From: TILAK CHANDRA <0000058f112ac338-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] flood prevention question
Date: Fri, 22 Feb 2019 23:43:11 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 4F21C856-5168-4A1B-99D9-5B2C000C3883**At_Symbol_Here**wisc.edu
In-Reply-To <84AD67AD-3BFE-4E23-BB6E-C93426330F5D**At_Symbol_Here**chem.ucla.edu>


One more addition here, keep water flow low for any overnight reactions and high boiling solvents. Generally, night time, the overall water pressure in the building increases, and more probability of condenser tubing detachment and water flooding in the lab.


Tilak 

Sent from my iPhone

On Feb 22, 2019, at 4:00 PM, Craig Merlic <merlic**At_Symbol_Here**chem.ucla.edu> wrote:

 

Malinda,

 

Even with recirculating systems, hoses can still pop off, so wiring hoses on is important.

 

Besides floods, having water cooling above electric heating mantles and hot oil baths is not ideal.

 

A great solution for many applications is the Findenser which eliminates water entirely.

https://www.radleys.com/products/our-products/benchtop-and-hotplate-tools/findenser-air-condenser

But they are not cheapÉ.

 

Best,

Craig Merlic

Professor of Chemistry

UCLA Department of Chemistry and Biochemistry

Executive Director 

UC Center for Laboratory Safety

Los Angeles, CA  90095-1569

Voice:  310-825-5466

 

 

From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU> on behalf of Melinda Box <melinda.box**At_Symbol_Here**GMAIL.COM>
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Date: Friday, February 22, 2019 at 1:47 PM
To: <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Subject: [DCHAS-L] flood prevention question

 

Hi, all,

 

We recently had a flood due to an insecurely attached hose on a water-cooled condenser set up overnight.

 

So I am on the hunt for ways to reduce this risk, besides attaching the hose more securely.  I know there are recirculating system options, but I don't know what's suitable for overnight cooling.

 

All input welcome,

Thanks,

Melinda Box, M. Ed.
Organic Chemistry Lab Supervisor

Chem Dept Safety Officer

North Carolina State University

Department of Chemistry

Fox  328

Tel: (919) 515-2537

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