RE: photogravure

First I was referred to as an authority and now I am "the esteemed."

I ain't dead yet so cut the crap.<grin>

A quick tour of the List will find you some people who have other
appellatives to attach to my name that are quite different.

Since we are on this topic I wrote a paper on handling chrome waste with the
help of Howard Efner Ph.D. (Chemistry) who is the Center's Science Advisor.

http://www.bostick-sullivan.com/Technical_papers/gum_dichromate_green.htm

--Dick Sullivan - Esteemed and Authoritative.

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From: Bob Maxey [mailto:written_by@msn.com]
Sent: Tuesday, August 16, 2005 8:57 PM
To: alt-photo-process-l@sask.usask.ca
Subject: Re: photogravure

>>>Sorry to sound curt. I just get a bit rankled with chemophobics and I
don't
include you in that group. Since gum printers are working with
concentrations 2 to 4 times that of gravurists I am wondering how many are
wearing hoods. You wear a hood to protect from vapors. Chromium solutions do
not vaporize so I am puzzled. The ferric chloride does give off some very
slight hcl fumes but that is not a huge problem. I daresay the gasoline
vapors from fueling ones car put you at far greater risk.>>>

I use ferric chloride perhaps three times a week. Not for gravure or a
photographic process; although I am creating images. I am well versed on the
safety of FeCL3. OSHA currently does not regulate it as toxic or hazardous,
according to the MSDS information.

I absolutely agree with the esteemed Mr. Sullivan and his view of FeCL3.
Ferric chloride is a rather innocuous chemical when you compare it to other
chemicals.

Bob

...

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Received on Tue Aug 16 23:01:04 2005