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Subject: Re: [DCHAS-L] One Pass Water Flooding Incidents
Date: Thursday, September 6, 2018 at 4:06:53 PM
Author: NEAL LANGERMAN <neal**At_Symbol_Here**CHEMICAL-SAFETY.COM> 		Next by Date:
Subject: Re: [DCHAS-L] Osmium Tetroxide
Date: Thu, 6 Sep 2018 20:38:50 +0000
Author: TILAK CHANDRA

From: Jeffrey Lewin <jclewin**At_Symbol_Here**MTU.EDU>
Subject: Re: [DCHAS-L] Osmium Tetroxide
Date: Thu, 6 Sep 2018 16:38:47 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: CAEwQnqiJP5iMZv89us8Z7CDe7YEXmAL3YfeoRfiRszUdDdxacA**At_Symbol_Here**mail.gmail.com
In-Reply-To


If you dive DEEP into toxnet, I found the following.

Sounds like it could be an issue under certain conditions, and definitely avoid HCl.

The most serious hazard I'm aware of is eye hazards (nasty in the eyes).

As a side note, off-spec disposal (and containers) is a P listed RCRA waste (P087).

Jeff

https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/f?./temp/~SQBs97:3

Hazardous Reactivities & Incompatibilities:


Contact with hydrochloric acid will cause formation of poisonous chlorine gas. Contact with easily oxidized organic materials may cause fires and explosions.
[Mackison, F. W., R. S. Stricoff, and L. J. Partridge, Jr. (eds.). NIOSH/OSHA - Occupational Health Guidelines for Chemical Hazards. DHHS(NIOSH) Publication No. 81-123 (3 VOLS). Washington, DC: U.S. Government Printing Office, Jan. 1981., p. 2] **PEER REVIEWED**




On Thu, Sep 6, 2018 at 3:40 PM Jeffrey R. Cogswell <Jeffrey.R.Cogswell**At_Symbol_Here**dartmouth.edu> wrote:

Hello

I'm currently working on Chemical SOPs.

While working on Osmium Tetroxide I've been looking at other SOP's from other Colleges/Universities and many say it is a strong oxidizer. Which makes sense but when you look at the SDS sheets and in particular the GHS for this chemical; oxidizer isn't listed as a hazard. I'm looking at it in a solution and by itself (100%) and still no oxidizer warning.

Any guidance would be greatly appreciated.

Thanks

Jeffrey R. Cogswell, Ph.D.

Chemical Inventory and Laboratory Resource Center Technician, EHS

37 Dewey Field Road, HB 6216

Hanover, New Hampshire 03755

P: 603.359.0128 F: 603.646.2622

http://www.dartmouth.edu/~ehs/

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Jeff Lewin
Chemical Safety Officer
Compliance, Integrity, and Safety
Environmental Health and Safety
Michigan Technological University
Houghton, MI 49931

O 906-487.3153
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