• Abbey pH Pen™

Abbey pH Pen™

  • $6.00

Use this pen to make a quick check of the pH of paper by applying a test line.  If when dry the line shows yellow, the paper is acidic.  If the line show purple, the paper is neutral or alkaline.  The pen is based on a chlorophenol red test.  Note that coloured papers may affect the test colours.   

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  • Product Code:MS-ABBY
  • Availability:23

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