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Subject: Alkaline reserve

Alkaline reserve

From: Ellen McCrady <whenry>
Date: Sunday, August 12, 1990
Regarding Claire Rutiser's finding that many of their buffered samples
in the Paper Resizing Project had pH's below 7:  In the 1972 publication
by George Kelly that I mentioned above, he gives the reasons why a
surface electrode measurement may be lower --sometimes much lower-- than
one gotten with a slurry.  He gives pH values gotten by 4 different
methods, for 11 different papers, and shows that where the slurry gave a
much higher value, it was usually with paper in which the alkaline
reserve was especially high.

                  Conservation DistList Instance 4:10
                  Distributed: Friday, August 17, 1990
                        Message Id: cdl-4-10-005
Received on Sunday, 12 August, 1990

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