TERMIUM Plus®

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PHENOLPHTHALEIN END-POINT ALKALINITY [1 record]

Record 1 2015-10-08

English

Subject field(s)
  • Analytical Chemistry
  • Water Treatment (Water Supply)
DEF

The measurement by titration to the phenolphthalein end-point (pH 8,3) of that portion of alkalinity arbitrarily attributed to all the hydroxyl and half the carbonate content of a water.

OBS

Often used in conjunction with methyl red end-point alkalinity.

OBS

phenolphthalein end-point alkalinity: term and definition standardized by ISO.

French

Domaine(s)
  • Chimie analytique
  • Traitement des eaux
DEF

Mesurage par titrage au point de virage de la phénolphtaléine (pH 8,3) de la partie de l'alcalinité arbitrairement attribuée à la totalité des hydroxyles et à la moitié de la teneur en carbonate d'une eau.

OBS

Souvent utilisée conjointement avec l'alcalinité au point de virage du rouge de méthyle.

OBS

alcalinité au point de virage de la phénolphtaléine : terme et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Química analítica
  • Tratamiento del agua
DEF

Medida por titulación al punto de viraje de la fenolftaleína (pH 8,3) de la parte de alcalinidad arbitrariamente atribuida a la totalidad de los hidróxidos y a la mitad del contenido de bicarbonato de una agua.

OBS

A menudo se utiliza conjuntamente con la alcalinidad en el punto de viraje del rojo de metilo.

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