Universal indicator paper

Universal indicator paper

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Caption: Universal indicator paper. Universal indicator changes its colour depending on the pH of the solution. Shown here are the universal indicator paper strips (orange and green) and the colour matching chart that helps to determine specific pH values (about 3 and 9, respectively).

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Keywords: acidic, acidity, alkaline, alkalinity, basicity, chart, chemical, chemistry, colour, indicator, matching, measure, measurement, paper, ph, ph indicator, still life, strip, test, universal indicator

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