ricAcid.pdf
-Original Message-
From: Morken, Timothy via Histonet
[mailto:histonet@lists.utsouthwestern.edu]
Sent: Friday, May 06, 2016 8:28 AM
To: Julio Benavides
Cc: Histonet
Subject: Re: [Histonet] picric acid
Julio, you can just pour water into the container. We always
ove
thy via Histonet [mailto:histonet@lists.utsouthwestern.edu]
Sent: Friday, May 06, 2016 8:28 AM
To: Julio Benavides
Cc: Histonet
Subject: Re: [Histonet] picric acid
Julio, you can just pour water into the container. We always
oversaturated so that a layer of water was on top of the powder.
Look at this
Subject: Re: [Histonet] picric acid
Julio, you can just pour water into the container. We always oversaturated so
that a layer of water was on top of the powder.
Look at this explanation
http://oag.ca.gov/sites/all/files/agweb/pdfs/cci/safety/picric.pdf
or read the text below if you cannot open
western.edu]
Sent: Friday, May 06, 2016 7:11 AM
To: histonet@lists.utsouthwestern.edu
Subject: Re: [Histonet] picric acid
Hi,
For how long can you keep it in water? any particular dilution or just keep it
humid (saturation)?
We also do have some dry picric acid in the lab and, after readin
Hi,
For how long can you keep it in water? any particular dilution or just
keep it humid (saturation)?
We also do have some dry picric acid in the lab and, after reading about
the bomb squad, I was begining to get concerned...
Thanks a lot
julio
El 06/05/2016 a las 15:30, Rene J Buesa
Picric acid is an expensive reagent useful in many histology procedures.The
advise you received of adding water is a good one.Humid picric acid will not
explode at all. Why waste a good reagent?Keep humid, you will eventually used
it.René
On Thursday, May 5, 2016 3:24 PM, Mca Werdler via
] picric acid
Dear histonetters,
Since a few months, i started working in a histology lab, run only by me (
coworkers are not specialized in histology). There has not worked here a person
at histology for about 2 years.
After many new protocols, i decided to clear out some chemicals.
Now i found
rain as it could react w copper pipes. Many reasons
> to dispose of it properly.
>
> Steve Pinheiro
>
>
>
> -Original Message-
> From: Mca Werdler via Histonet [mailto:histonet@lists.utsouthwestern.edu]
> Sent: Thursday, May 05, 2016 2:09 PM
> To: histonet@list
, 2016 2:09 PM
To: histonet@lists.utsouthwestern.edu
Subject: [Histonet] picric acid
Dear histonetters,
Since a few months, i started working in a histology lab, run only by me (
coworkers are not specialized in histology). There has not worked here a person
at histology for about 2 years.
After
Dear histonetters,
Since a few months, i started working in a histology lab, run only by me (
coworkers are not specialized in histology). There has not worked here a
person at histology for about 2 years.
After many new protocols, i decided to clear out some chemicals.
Now i found around 1 KG
-
From: histonet-boun...@lists.utsouthwestern.edu
[mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Tyrone Genade
Sent: Monday, June 03, 2013 2:30 PM
To: histonet
Subject: [Histonet] picric acid paranoia
Hello,
I am moving to the USA from sunny South Africa. I would like to bring my
Genade
Sent: Monday, June 03, 2013 2:30 PM
To: histonet
Subject: [Histonet] picric acid paranoia
Hello,
I am moving to the USA from sunny South Africa. I would like to bring my wax
blocks with me but the fish inside them were fixed with Bouin's fluid.
I'm worried the picric acid could draw
Hello,
I am moving to the USA from sunny South Africa. I would like to bring my
wax blocks with me but the fish inside them were fixed with Bouin's fluid.
I'm worried the picric acid could draw the wrong sort of attention. Courier
companies and US Customs (which never got back to me) haven't been
I don't know what the US regulations for importing paraffin blocks are,
but Bouin fixed and paraffin processed tissues are perfectly safe. It is
picric acid and its simple salts which are dangerous when dried. Since
your tissues went through alcohol during processing, any free picric
acid will
-Original Message-
From: histonet-boun...@lists.utsouthwestern.edu
[mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Bryan Llewellyn
Sent: Monday, June 03, 2013 12:05 PM
To: histonet@lists.utsouthwestern.edu
Subject: Re: [Histonet] picric acid paranoia
I don't know what
Hi,
The Halifax explosion was indeed a very dramatic event. Anyone unfamiliar
with the story should certainly read up on it. It was truly incredible. The
link to the Wikipedia article was previously posted. A couple of important
points about this story. The ship that blew up was carrying metric
A WEB site just for historical interest:
http://en.wikipedia.org/wiki/Halifax_Explosion
We continue to use picric acid in the lab, but only as an aqueous or saturated
solution.
The chemical safety guys came out and carefully removed the bottle of
moistened picric acid that we had on the
an alternative
fixative was a good move for us.
Jackie O'
-Original Message-
From: Goins, Tresa tgo...@mt.gov
To: Ingles Claire cing...@uwhealth.org; Geoff mcaul...@umdnj.edu; histonet
histonet@lists.utsouthwestern.edu
Sent: Wed, Sep 19, 2012 3:02 pm
Subject: [Histonet] Picric Acid
A WEB
Subject: Re: [Histonet] Picric Acid
There is a lot of published data on the hazards of picric acid - although I
don't think most histo labs have to worry about what they have in house for
trichromes and fixation. It did cost me more disposal since we used to use
hundreds of gallons a year
I am curious how big an explosion there would be from 1% picric acid in acetone
if a little dried around the cap.
Margaret Perry HT(ASCP)
Dept of Veterinary and Biomedical services
Box 2175
South Dakota State University
Brookings SD 57007
605-688-5638
, there is no problem.
René J.
--- On Fri, 2/3/12, Perry, Margaret margaret.pe...@sdstate.edu wrote:
From: Perry, Margaret margaret.pe...@sdstate.edu
Subject: [Histonet] picric acid
To: histonet@lists.utsouthwestern.edu histonet@lists.utsouthwestern.edu
Date: Friday, February 3, 2012, 1:50 PM
I am curious
; MargaretPerry
Subject: Re: [Histonet] picric acid
There have been cases where the rotary valve of VIPs have been damaged after
using Bouin's fixative without proper washing.
On the other hand I used to keep picric acid but always in saturated solution,
which is about 1%. As long as you have water along
they disposed and I bet that made a BIB BANG!!
William DeSalvo, B.S., HTL(ASCP)
From: margaret.pe...@sdstate.edu
To: histonet@lists.utsouthwestern.edu
Date: Fri, 3 Feb 2012 18:50:37 +
Subject: [Histonet] picric acid
I am curious how big an explosion there would be from 1% picric acid
Just wipe away any drops after closing the bottle.
But your solution makes nice shiny plastic objects become ugly dull
yellow plastic objects.
Avoid spilling ;)
I am curious how big an explosion there would be from 1% picric acid in acetone
if a little dried around the cap.
Margaret Perry
Way back in 1976, I had just been disgorged from graduate school with a MS
degree in microbiology, and I landed a job in a hospital lab in a Chicago
suburb as the micro supervisor. Since I was the new guy, and no one else
wanted the (unpaid) job, I was also appointed as Laboratory Safety Officer.
Hello everyone!
I would like to know what all of you are doing now that
picric acid is so hard to get? We use it for bouin's, trichrome and
gram stain. I know we can buy these already made up, but we wanted to
know if there might be other alternatives. I'll be off tomorrow
(state
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