silver nitrate thanks

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From:Neralie <>
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Thanks for all the suggestions.  With the appropriate precautions ~40%
nitric acid worked well - and the paint remains on the bench top.
Thankfully the black paint was not required.


                      neralie coulston
                      school of microbiology and immunology
                      University of New South Wales
                      Sydney, Australia
                      ph 9385 1081
                      fax 9385 1591


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