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Trial Methods of Deacidification
Application of Spray
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24 days acid papers ammonia amount application Barrow Research Laboratory bound volumes calcium oxide carbonate century chemical wood fibers coated book papers coated papers cockling Cold Extraction concentrated solution Control 1 day days 1 M.D. days 12 days documents drying effective embrittlement ethyl alcohol flexing folding endurance folds M.I.T. following number hard water heat-aged data heat-aging at 100 high acidity indicate iron gall iron gall ink layers litmus paper magnesium acetate magnesium bicarbonate solution manuscripts material method of deacidification modern book papers Naturally Aged number of days Number of folds overnight papermaking pH Cold pH meter pH papers problem procedure rate of deterioration regression lines relatively Richmond Rosin Fiber Length S.W. Medium S.W. Poor Sample soaking solution of magnesium spray deacidification Sprayed once Sprayed twice stability sulfuric acid Table 1 continued text papers untreated text book-papers urea Virginia State Library W. J. BARROW RESEARCH writing inks