Part # 4638
Paper and Board pH Testing Pen An easy, convenient method for distinguishing between safe alkaline paper and board, and unsafe acidic paper and board. Easy to use, simply draw a line and instantly determine the answer. THe chlorophenol red indicator solution turns a definite purple color on any paper with a pH of 6.5 or higher. Any othe rcolor would indicate a material most likely unsuitable for conservation purposes.
Digital photos,greeting cards, scrapbook materials and more last twice as song once you add this layer of protection. Without it, moisture, fading, early aging, ink runs and damage from smudges can ruin your most precious valuables
Part # 4465P
Bookkeeper Deacidification Pump Quickly and efficiently neutralize acidic paper with Bookkeeper Deacidification Pump. Magnesium Oxide is the neutralizing agent in Bookkeeper which is permanently "fixed" in the cellulosic fibers and on the paper's surface. Bookkeepers uses only non toxic and non- hazardous materials, and dries odor free on treated documents. New wt. 8oz