pH Indicator Strips

Non-bleeding pH indicator strips are easy to use. For surface pH on paper and textiles, use deionised water. In contrast to conventional indicator papers, the indicator dyes of the pH strips are chemically bonded to cellulose fibres. As a result, the possibility of colour bleeding, even in strongly basic solutions is avoided. Measurement of pH values is possible even in unbuffered or very weakly buffered solutions, since the strips can be left in the solution until the final colour change is completed. Colours of the individual colour fields cannot run into each other. This allows a more precise comparison with the colour scale, the special dyes guarantee a sharp differentiation between the individual pH values.