pH Testing Pen

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Product Number: 9739992

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$7.15    Save 75.0%


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Easy, convenient way to determine whether the paper or board you're using is acidic. Simply draw a small line on the material you wish to test. The chlorophenol red indicator solution in the pen will turn purple on any paper with a pH of 6.8 and above. A clear or yellow color indicates the material is probably unsuitable for conservation purposes.

Item Weight: 0.19
Brand: Lineco
Prop 65:


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