From: Paul Harrison <pharriso**At_Symbol_Here**UNIVMAIL.CIS.MCMASTER.CA>
Subject: Re: [DCHAS-L] Heirloom Chemistry Set Kickstarter Project
Date: Fri, 15 Nov 2013 14:03:57 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: web-483506166**At_Symbol_Here**
In-Reply-To <00f201cee218$98589e00$c909da00$**At_Symbol_Here**>

This is neat, but I was surprised to see that they sell thallium malonate. Thallium is an infamous toxin used by many murderers. I don't know about the malonate, but I would guess that the anion makes little difference. This does not seem like a great idea for your kids.


On Fri, 15 Nov 2013 10:37:29 -0500
Peter Zavon wrote:
> 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
> information)
> 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
> PZAVON**At_Symbol_Here**
> -----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
> To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
> 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
> rstuart**At_Symbol_Here**

Paul Harrison
Associate Professor of Chemistry
Department of Chemistry and Chemical Biology
McMaster University
1280 Main St. W., Hamilton, ON, L8S 4M1, Canada
Phone: (905)525-9140 ext. 27290; FAX: (905)522-2509

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