DCHAS-L Archives Jun 16 2010 - Re: Peroxide formers

Date: Wed, 16 Jun 2010 17:10:40 +0000
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From: "George D. McCallion" <medchem**At_Symbol_Here**COMCAST.NET>
Subject: Re: Peroxide formers
In-Reply-To: <4A4DBA32095D8F4B8691764CCD57758806247CAE**At_Symbol_Here**ENTWEXMB0000000.university.harvard.edu>
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Absolu tely! The reason for an inhibitor is to limit the peroxide formation. As al ways, test for peroxides whenever handling ethers (such as MtBE, THF, and D iethyl Ether...to name a few).

Cheers!

---------------------------------------------
George D. McCallion

Chemist III
Chemical Process Research & Developm ent
Johnson Matthey Pharmaceutical Materials
2003 Nolte Drive
West Deptford, NJ 08066-1742
Voice: 856.384.7255
Fax: 856.384.7186
E-M ail: mccalgd**At_Symbol_Here**jmusa.com

----- Original Message -----
From: "Amy Carr Johnson" <amy_joh nson**At_Symbol_Here**HARVARD.EDU>
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Sent: Wednesday, June 1 6, 2010 11:57:46 AM GMT -05:00 US/Canada Eastern
Subject: [DCHAS-L] Pero xide formers

I have been asked whether eth yl ether's peroxide-forming properties are affected if the ether is anhydro us. Any Chemists out there?

From: DCHAS-L Discussion List <DCHAS -L**At_Symbol_Here**list.uvm.edu>
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU <DCHAS-L**At_Symbol_Here**LIST.UV M.EDU>
Sent: Wed Jun 16 11:23:23 2010
Subject: Re: [DCHAS-L] Syringe Disposal

et al,

There's a difference between syringes/hypodermic needles for any medicinal purpose and similar ones which cannot have come into contact with human/animal bod y fluids.

There's necessarily a real concern about transmissio n of blood-borne pathogens from medically-used hypodermic needles and that' s why for political and public health reasons we have "Universal Precaution s" which always were common sense anyway for medically-used syringes/hypode rmic needles. Some of these blood-borne pathogens are deadly and no i nnocent person coming across them on a beach or as a custodian in an airpor t or educational institution or elsewhere should get a life-threatening med ical condition because they were just enjoying the beach or doing their job . There are methods described for proper disposal of such hypodermic needles. I'd suggest anyone interested go to the CDC website and look under "Universal Precautions" and "Medical Waste" for more information.

For syringes and needles that have been used for laboratory purp oses and have not been in contact with human or animal body fluids , then from a physician/medical toxicologist perspective, if you throw them in the regular trash, someone who is prone to self-inject illicit drugs in travenously or otherwise might come across them and the conditions of steri lity (and what chemical residuals may still be in syringes) are rather universally ignored. Even if they are syringes without needles, they could be diverted. Better to incinerate the whole hootenany or deal with medical waste however your institution does it "in compliance wit h all federal, state, and local regulations" in "MSDS-Speak".

Alan
Alan H. Hall, M.D.
Medical Toxicologist

< BR>

Date: Wed, 16 Jun 2010 07:56:13 -0700
From: russell.vernon**At_Symbol_Here**UCR.EDU
Su bject: Re: [DCHAS-L] Syringe Disposal
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU

In California the legislature in its infinite wisdom (under t he influence of the tourism industry) declared all unwanted hypodermic need les as =E2=80=98medical waste=E2=80=99 no matter what they have or have not been used to do

This after bags of medical waste washed up on beaches in San Diego after they were discarded from cruise ships=E2=80=A6

J

-Russ

Russell Vernon, Ph.D.
russell.vernon**At_Symbol_Here**ucr.edu< /U>
www.ehs.ucr.edu
(951) 827-5119

From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list. uvm.edu] On Behalf Of Williams, Mark
Sent: Tuesday, June 1 5, 2010 9:07 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHA S-L] Syringe Disposal

Hi All,

We use syringes to deliver solvents. Some of the syringes have needles, some do not. None contain any biohazardous substance, but the sol vents would be hazardous waste if disposed of.

*For syringes without needles, if they are empty when disposed of, can we consider each syringe to be a RCRA empty container and throw th em in the regular trash?

*What about empty, non-biohazardous syringes with needl es?

I have done a little searching on this issue, but have not com e up with definitive guidance.

Thank you

Mark Williams

From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list. uvm.edu] On Behalf Of DCHAS-L automatic digest system
Sent: Tuesday, June 15, 2010 12:01 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: DCHAS-L Digest - 13 Jun 2010 to 14 Jun 2010 (#2010-144)

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