ISO 2521:1974
Tritolyl phosphate for industrial use — Determination of acidity to phenol red — Volumetric method
Reference number
ISO 2521:1974
ISO 2521:1974
Edición 1
1974-04
1974-04
© ISO 2024
Retirada
Resumen
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 .
Ciclo de vida
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)