acid-base indicator

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Related to PH indicator: PH meter

acid-base indicator

[′as·əd ′bās ′in·də‚kād·ər]
(analytical chemistry)
A substance that reveals, through characteristic color changes, the degree of acidity or basicity of solutions.
References in periodicals archive ?
Use strips of pH indicator paper to find a liquid with the same pH.
It can be noticed that all curves have the same S-Shape, characteristic of the irradiation response of a pH indicator in an acid-base titration with different sensitivities.
Contract awarded for Ph Indicator Paper Acquisition
1% to 5% by weight of a pH indicator that is substantially colorless at pH 7 and develops a color in an acidic environment, (b) 20% to 90% by weight of a surfactant (c) 5% to 55% by weight of a polyalkyfene glycol, (d) 0%
By encapsulating pH indicator dyes into coatings applied to Ocean Optics' Smart pH Cuvettes, proprietary miniature fiber optic spectrometers and accessories can be used for optical pH sensing of 5.
The majority of cultivated plants can efficiently grow and fruit only in non-acid soils and therefore, soils with the pH indicator lower than 5 have to be limed.
Delvoscan, part of the DSM Delvotest system, reveals antibiotic residues by measuring acid levels that show up as a colour change on a pH indicator.
We know that sugar, salt, and pH can act as food preservatives, a nd since we already carry pH indicator strips, all we had to find was some way of measuring solute concentrations.
A Nitrizine paper (Apothecon, Princeton, NJ) is a pH indicator paper tape that changes from yellow to blue through a pH range of 4.
While attempting to synthesize a substance that would serve as a pH indicator, Bottiger created a novel, brilliant red dye that did not require a mordant to stain textile fibers.
pH indicator solution (100ml Bottle),Sodium Thiosulphatc (500 mg pack),Manganous Sulphate (500 gm pack),Potassium Iodide(250 gm pack) Potassium Hydroxide(500 gm pack),Sodium Azide (100 gm pack),Starch(500 gm Pack),Conc.