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Subject: Peroxide formers
Date: Wed, 16 Jun 2010 11:57:46 -0400
Author: "Johnson, Amy Carr"
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Subject: Re: Peroxide formers
Date: Wed, 16 Jun 2010 14:18:11 -0400
Author: List Moderator
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Date: Wed, 16 Jun 2010 17:10:40 +0000
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
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>
<
div style='font-family: Arial; font-size: 12pt; color: #000000'>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
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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