From: Margaret Rakas <mrakas**At_Symbol_Here**SMITH.EDU>
Subject: Re: [DCHAS-L] Heirloom Chemistry Set Kickstarter Project
Date: Fri, 15 Nov 2013 15:46:25 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CAAszpkx=CnGYRZnqZhWtz060OFdDXOLBytjUJ-fFh=vDTPdimQ**At_Symbol_Here**

you know, just for kicks I went to the website to see if he sold cyanides.

Yep, potassium cyanide, 5 grams, $5.65

20 grams of mercury: $18.60

Potassium (which forms superoxides in a short time so I'm wondering if it's 'fresh' when received): 3.91 grams, $18

I guess I'm glad I don't have to work with him...

On Fri, Nov 15, 2013 at 2:31 PM, Derheimer, Dan G <dderheim**At_Symbol_Here**> wrote:
Sounds like their safety information is "heirloom" also.

Dan Derheimer
Environmental Health & Safety
Indiana University Bloomington
1514 E. 3rd St.
Bloomington, IN 47405

-----Original Message-----
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Peter Zavon
Sent: Friday, November 15, 2013 10:37 AM
Subject: Re: [DCHAS-L] Heirloom Chemistry Set Kickstarter Project

This sounds kind of interesting but I begin to question the validity of the entire enterprise (especially their stated concern for safety) when I see that benzene is one of the compounds provided with their kit AND that the MSDS they offer for benzene not only lacks any mention that it is a known human carcinogen, but includes the line "Chronic Exposure: No information found." (It does state "Known Carcinogen" under Section 16: other

It also states in Section 8 that no airborne exposure limits have been established while burying the OSHA and ACGIH limits in Section 15 Regulatory information.

I've not checked any of their other MSDS, but benzene is so widely known in this regard that I have to wonder what these people think they are doing.

Peter Zavon, CIH
Penfield, NY


-----Original Message-----
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of Ralph B. Stuart
Sent: Friday, November 15, 2013 8:11 AM
Subject: [DCHAS-L] Heirloom Chemistry Set Kickstarter Project

Here's something that I think will interest many on the DCHAS-L list... it addresses chemical safety issues in interesting ways.

- Ralph

Heirloom Chemistry Set Kickstarter Project

This is the chemistry set you always wanted as a kid but either didn't get it or you got stuck with some cheap plastic wannabe...

Ralph Stuart, CIH
Chemical Hygiene Officer
Cornell University

Margaret A. Rakas, Ph.D.
Manager, Inventory & Regulatory Affairs
Clark Science Center
413-585-3877 (p)

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