DCHAS-L Archives · Post dated July 12, 2017

Re: [DCHAS-L] LETTER: Beware of flammable chemical in wood stain, shed caught fire

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Subject: Re: [DCHAS-L] LETTER: Beware of flammable chemical in wood stain, shed caught fire

Date: Jul 12, 2017 15:30 UTC

Author: Debbie M. Decker <dmdecker**At_Symbol_Here**UCDAVIS.EDU>

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Subject: Re: [DCHAS-L] Flammables

Date: Jul 12, 2017 20:52 UTC

Author: Richard Rosera <richardrosera**At_Symbol_Here**GMAIL.COM>

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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: Jul 12, 2017 18:20 UTC

Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>

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

actsnyc**At_Symbol_Here**cs.com www.artscraftstheatersafety.org

-----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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Re: [DCHAS-L] LETTER: Beware of flammable chemical in wood stain, shed caught fire

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