The Bookkeeper Process

This is a Hquid, nonaqueous process that employs a perfluorocarbon carrier to deposit a submicron dispersion of magnesium oxide. No alcohol is involved and a surfactant is employed to keep the neutralization agent evenly distributed in the fluorocarbon solvent The technique was developed by Koppers Chemical Company in 1981, who transferred the rights of the process to Richard Spatz in 1987. Book Preservation Technologies, in which Spatz is a prindpal, continues the development of the method. 

The treated books show partially a dusty layer of magnesiiun oxide and damage because of the intense mechanical strain during the deacidification process. Today 

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