Roll (4.8 m), with colour scaleMQuant® Phenolphthalein paper is suitable to monitor a qualitative pH change in the alkalinic range. The paper changes its colour from colourless to red when the pH rises from 8 to 9. pH indicator papers supplied in rolls are better suited for long-term storage, since they are protected against external influences. pH indicator papers are manufactured by impregnating high-quality filter paper with indicator or mixed-indicator solutions. Therefore, the paper is dried, cut and packed into the corresponding sizes. For a semi-quantitative monitoring of the pH value, please refer to MQuant® pH-indicator papers or strips and for a quantitative measurement to our Reflectoquant® test strips.
Legal Information
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
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