From: David Roberts <droberts**At_Symbol_Here**DEPAUW.EDU>
Subject: Re: [DCHAS-L] Liquid nitrogen in the kitchen
Date: Mon, 3 Oct 2016 11:38:04 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: F117242D-2A3C-4239-88E2-9C9739444361**At_Symbol_Here**depauw.edu
In-Reply-To <000a01d21d89$f3a94ed0$dafbec70$**At_Symbol_Here**chemical-safety.com>


Farmers have it in their barns, so it is possible to get, though I don‰??t know how easy it is to get in a place where they can pour it out. I know that airgas goes to local farmers and tops off dewars that are located in barns, though those dewars have samples in them (bull semen). And I don‰??t know how popular that is anymore, there are just a few. Those dewars are long term storage dewars - not a lot in there. So I don‰??t think it‰??s that easy to get, without going through a University or something.


Dave


> On Oct 3, 2016, at 11:22 AM, NEAL LANGERMAN wrote:
>
> Out of curiosity ... how does one purchase LN2 as a commodity? If I walk
> into the local AirGas outlet, I need (1) a business license, (2) a physical
> bricks & mortar address, and (3) a proper dewar. Not a common household
> item.
>
> nl
>
>
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> -----Original Message-----
> From: ACS Division of Chemical Health and Safety
> [mailto:DCHAS-L**At_Symbol_Here**PRINCETON.EDU] On Behalf Of Stuart, Ralph
> Sent: Monday, October 3, 2016 7:46 AM
> To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
> Subject: [DCHAS-L] Liquid nitrogen in the kitchen
>
> In follow up to our discussion a week or two ago about making ice cream with
> liquid nitrogen, I wonder if anyone on the list has put together a briefing
> sheet on best safety practices associated with this activity? (Yes, we'll be
> hosting such an event next week.)
>
> Google helped me find some cringe-worthy videos of this activity and a
> couple of culinary magazine articles that provide a quick glance at the
> hazards associated with liquid nitrogen in the kitchen, but I haven't found
> a summary of safety aspects of this innovation. Happily, I have David Katz's
> procedure for lN2 ice cream to start with, but am looking for something more
> eye-catching to remind the audience that doing this at home isn't quite as
> simple as it looks in the hands of an experienced chemist.
>
> Thanks for any suggestions about this.
>
> - Ralph
>
> Ralph Stuart, CIH, CCHO
> Chemical Hygiene Officer
> Keene State College
>
> ralph.stuart**At_Symbol_Here**keene.edu
>
> ---
> This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical
> Health and Safety.
> For more information about the list, contact the Divisional secretary at
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> ---
> This e-mail is from DCHAS-L, the e-mail list of the ACS Division of Chemical Health and Safety.
> For more information about the list, contact the Divisional secretary at secretary**At_Symbol_Here**dchas.org

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