ISO 2521:1974
Tritolyl phosphate for industrial use — Determination of acidity to phenol red — Volumetric method
Reference number
ISO 2521:1974
ISO 2521:1974
Edition 1
1974-04
1974-04
© ISO 2024
Withdrawn
Abstract
Specifies the titration of any acidity present in an ethanolic solution with standard volumetric sodium hydoxide solution in the presence of phenol red as indicator. The end point of the titration corresponds to the formation of the salt Na2 HPO4 .
Life cycle
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