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acid-base indicator;pH indicator
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nature : acid-base titration, as a kind of indicator. Some of the more complicated structure of the organic acid or organic weak base. Their molecular and after internal rearrangement formed by ions in acid or alkali solution with different colors, and in certain pH ranges change. For example, methyl orange is the color range of pH 3.0-4.4, from the red into yellow; Phenolphthalein the color range of pH 8.2-10.0, colorless into red; Litmus is the color range of pH 5.0-8.0 from the red into the blue.


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More Detailed Data:
1) indicator
2) indicator
3) dye for pH indicator
4) indicator;indicating instrument
5) mechanical type indicator;indicator
6) pH indicator absorbance ratio method
7) extensive pH indicator paper
8) base
9) base
10) base
Notice Some description was translated by software and the data is only as a reference.
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