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Re: Leather cleaning - urine

I'm no chemist, but I think you are dealing with the interaction of the
tanning minerals? and ammonia.  Would a wash with potassium lactate do
any good?   It may be a matter of blending out the stain line rather than
actually taking away the urine.  Also, try asking the members of the
Conservation list.  There may be more chemists in that list.

Jane Brown

On Tue, 12 Mar 1996, Nicholas G. Yeager wrote:

> Have any of you had experience cleaning vegetable tanned leather stained by
> urine?
> A newly bound book was left on a table and little Max (the dog) decided to
> give his owner's book a new finish. I've been asked to take away Max's
> contribution and return the book to it's previous visual state. The leather
> is an unwaxed, uncoated brown colored cow skin of Argentine manufacture.
> Adhesive used to attach it to the boards is Elvace PVA.
> Many thanks,
> Nicholas Yeager

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