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Re: [BKARTS] sodium borohydride, too!



Jet,

Again, a very dangerous chemical. This substance can
ignite or even explode if it should come in contact
with water. Its gasses are also poisonous. There are
safer methods of removing stains from paper. Try
chloramine-T.

Ed
--- "J. J. Foncannon" <bolu.bolu@xxxxxxxxxxx> wrote:

>     Does anyone on this list have experience with
> using sodium
> borohydride?  The reference "Bookbinding and the
> Conservation of Books,"
> (Library of Congress) states that it is one of the
> most effective agents
> in combatting foxing in books.  The Rohm and Haas
> (the principal
> manufacturer in the US) website touts its safety.
> Yet, the MSDS sheet
> on the substance sounds numerous alarms, viz,
> "Supports combustion.
> Flammable solid. Can ignite in air from an open
> flame, continuing to
> burn as hydrogen is evolved. It reacts with water or
> steam to produce
> flammable hydrogen." And we're advised to use
> "GOGGLES & SHIELD; LAB
> COAT & APRON; VENT HOOD; PROPER GLOVES."  Even empty
> containers are
> suspect: "Do not pressurize.... or expose such
> containers to heat: they
> may explode and cause injury or death."
>     The Library of Congress reference states the
> material is stable in
> alkaline solutions.
>     Before I order any of this stuff,  I would like
> to know what I'm
> getting into.
> Thanks and best wishes,
> Jet
>
>
>
> --
>
> __________________________________________________
>
**********************************************************
> J. J. Foncannon
> Philadelphia, PA  19139
>
>  The Belgian surrealist painter Renee Magritte
> entered a cheese store in
> Brussels to purchase a wheel of Swiss cheese.  The
> owner pulled a wheel
> from the front window, but Magritte said he
> preferred the one on the
> back counter.
>  ?But they are identical,? the owner protested.
>  ?No,? Magritte insisted.  ?This one?s been stared
> at.?
>
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             ***********************************************
     The Bonefolder: an e-journal for the bookbinder and book artist

             For all your subscription questions, go to the
                      Book_Arts-L FAQ and Archive.

                  Both at: <http://www.philobiblon.com>
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