TERMIUM Plus®

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

UNIVERSAL PH INDICATOR [1 record]

Record 1 2021-07-28

English

Subject field(s)
  • Equipment (Chemistry)
  • Analytical Chemistry
DEF

... a blend of pH indicator solutions designed to identify the pH of a solution over a wide range of values.

CONT

There are several different formulas for universal indicators ... A common mixture includes thymol blue, methyl red, bromothymol blue, and phenolphthalein.

CONT

Universal indicator has many different colour changes, from red for strongly acidic solutions to dark purple for strongly alkaline solutions. In the middle, neutral pH 7 is indicated by green.

French

Domaine(s)
  • Équipement (Chimie)
  • Chimie analytique
CONT

Un indicateur universel est un mélange d'indicateurs dont les points de virage sont étalés de manière à ce que la couleur de la solution varie graduellement sur une large gamme de pH. On peut alors évaluer le pH d'une solution en y versant quelques gouttes de cet indicateur puis en comparant la couleur prise avec une échelle de teinte [...]

Spanish

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