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From: Monona Rossol <0000030664c37427-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>
Subject: Re: [DCHAS-L] LETTER: Beware of flammable chemical in wood stain, shed caught fire
Date: Wed, 12 Jul 2017 14:20:39 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 15d3808120a-2e25-1f03e**At_Symbol_Here**webprd-m98.mail.aol.com
In-Reply-To

Demystify: 

Yup.  Linseed, tung, poppyseed, walnut, citrus oil, and a bunch of setting oils are used.  Some of these need a metal drier in them to speed the reaction, so don't try ingesting any setting oil.  

To clarify, "boiled" linseed oil is a misnomer.  Years ago, they would boil linseed oil to get it to set up more quickly, but that process also made it tend to set up in the container.  So now they don't boil the oils to start the polymerization, that add a metal drier.  The most common ones were lead driers, now we are likely to see a variety of other metal compounds used to initiate the exothermic setting reaction.

But heating the oils also will work.  And in this case you can worry about all natural oils.  There has been a bunch of spontaneous fires in piles of laundry still warm from the drier that have been attributed to olive oil and some essential oils used in massage that didn't completely wash out of the sheets and robes.

I'm sure it's pathological, but something about that story makes me very happy.

Monona Rossol, M.S., M.F.A., Industrial Hygienist
President:  Arts, Crafts & Theater Safety, Inc.
Safety Officer: Local USA829, IATSE
181 Thompson St., #23
New York, NY 10012     212-777-0062

 


-----Original Message-----
From: Debbie M. Decker <dmdecker**At_Symbol_Here**UCDAVIS.EDU>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Sent: Wed, Jul 12, 2017 1:08 pm
Subject: Re: [DCHAS-L] LETTER: Beware of flammable chemical in wood stain, shed caught fire

Monona Rossol wrote:

There's your fuel and the fire-starter, PLAIN OLD TUNG OIL.  All these "natural" plant-derived setting oils will do this.
 
 
 
Is this a cousin of linseed oil, well-known self-combustible?
 
 
Debbie M. Decker, CCHO, ACS Fellow
Past Chair, Division of Chemical Health and Safety
University of California, Davis
(530)754-7964
(530)304-6728
dmdecker**At_Symbol_Here**ucdavis.edu
 
Birkett's hypothesis: "Any chemical reaction
that proceeds smoothly under normal conditions,
can proceed violently in the presence of an idiot."
 
 
 
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