English
Noun
wikipedia|pH indicator
en-noun|sg=acid-base indicator
#chemistry A substance that shows the acidity or alkalinity of a solution by its colour.
Synonyms
pH indicator
See also
bromocresol purple
bromophenol blue
bromothymol blue
congo red
indigo carmine
litmus
methyl orange
methyl violet
phenolphthalein
phenol red
thymol blue
thymolphthalein
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