TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PH MEASUREMENT [1 record]

Record 1 2003-01-21

English

Subject field(s)
  • Analytical Chemistry
  • Electrolysis (Electrokinetics)
  • Metrology and Units of Measure
DEF

Determination of the hydrogen-ion concentration in an ionized solution by means of an indicator solution (such as phenol phthalein) or a pH meter.

CONT

The two general methods available for the determination of hydrogen-ion activity and the pH values of solutions are the potentiometric procedures and the calorimetric procedures. ... At the present time the glass electrode, in combination with reference electrodes, is the cell most used for pH measurements.

French

Domaine(s)
  • Chimie analytique
  • Électrolyse (Électrocinétique)
  • Unités de mesure et métrologie
CONT

La mesure de l'activité des ions H+, c'est-à-dire la mesure du pH d'une solution, peut se faire par voie électrométrique ou par voie colorimétrique. La détermination électrométrique du pH repose sur la mesure de la f.é.m. [...]

Spanish

Campo(s) temático(s)
  • Química analítica
  • Electrólisis (Electrocinética)
  • Metrología y unidades de medida
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