pH paper
Chemistry lab strips
pH paper is paper treated with chemical indicators that change color when exposed to acids or bases, used to measure a solution's acidity or alkalinity.
You dip the strip into a liquid and compare the resulting color to a reference chart: The pH paper turned bright red, indicating strong acid.
Also called litmus paper, though litmus is technically one specific indicator among many.
- litmusAcid-base indicator dye
- litmus testSingle determining factor
- indicatorSign revealing status
- acidLow-pH chemical compound
- baseSupporting bottom structure
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- chemistry labbeaker, flask, test tube, pipette, burner
- pHacidic, alkaline, neutral, acidity, acid
- pH ChemistrypH, acid, acids, base, bases
- pH indicatorslitmus, phenolphthalein, bromothymol blue, pH strips, alizarin
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measurement instrument type
pH paperthermometer
Heat-measuring instrument
barometer · hygrometer · voltmeter · ammeter · spectrometer