From: Katharine Thayer (kthayer@pacifier.com)
Date: 07/09/01-10:55:42 AM Z
Katharine Thayer wrote:
>
You will probably need to treat this stain with a weak
sulfuric acid to remove it.I don't remember what concentration Pete
> Frederick recommends
Nadeau suggests (with a caution about using strong acids) a
concentration of .5% to 1% of either sulfuric or hydrochloric acid.
kt
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