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Re: [ARSCLIST] shellac and acidity

Hi David,

The simplest explanation of pH is that it is a measure of acidity &
basicity.  The scale is logarithmic from 0-14 with 7 being neutral.

pH6 is slightly acidic
pH8 is slightly basic (caustic)

If memory serves ph4-5 is typical of common vinegars.


Duane Goldman

At 11:47 AM 6/3/2003 -0400, you wrote:
translation anyone?


>>> nauck@xxxxxxxxx 06/03/03 11:17AM >>>
I have just received lab results back from Terry Tullos Wayland, who is
paper conservator.

He says:

"Kurt, your DOF specimen is a moderately acidic pH 4.59."

For what it's worth, there you have it.

Kurt & Diane Nauck

c/o Nauck's Vintage Records
22004 Sherrod Ln.
Spring, TX  77389

Website: www.78rpm.com
E-Mail: nauck@xxxxxxxxx

Phone: (281) 288-7826
Fax: (425) 930-6862

------ h. duane goldman, ph.d. | P.O. Box 37066 St. Louis, MO 63141 lagniappe chem. ltd. | (314) 205 1388 voice/fax "for the sound you thought you bought" | http://discdoc.com

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