Product Application

Alkalinity Titrimetric Method (0-200 ppm) 

Principle Theory

This test is based on the determination of alkalinity by titration with standard acid to the phenolphthalein color change (or to a pH of 8.3) and to the methyl orange color change (or a pH of 4.3).  For determination of hydroxide alkalinity only, barium chloride is added prior to titration to precipitate the carbonate ions.  Titration is then taken only to the phenolphthalein end point.  A pH meter may be used instead of the indicators to determine the end points of the titration.

Apparatus Required

Buret 25 ml - 1
Porcelain Cup, 210 ml    -  1
Glass stirring rod      -  1
Graduate,  50 ml - 1
Pipet, delivery, 5 ml      -  1
(1 pH meter- optional)      


Chemicals Required

Barium Chloride, 10%
Hydrochloric Acid, 0.02N
Methyl Orange Indicator
Methyl Purple Indicator
Phenolphthalein Indicator
Sulfuric Acid, 0.02N. 

QUICK HANDY ON SITE TEST can be obtaine through   our EASY to USE METHOD ::: RXSOL-62-5515-001 

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