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Homepage>ISO Standards>ISO 23772:2023-Pulps — Kraft liquor — Determination of residual alkali using potentiometric titration

ISO 23772:2023

ISO 23772:2023-Pulps — Kraft liquor — Determination of residual alkali using potentiometric titration

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Standard´s number:	ISO 23772:2023
Pages:	7
Edition:	1
Released:	2023
Language:	English

DESCRIPTION

ISO 23772:2023

This document describes a procedure for determining the content of residual alkali in Kraft black liquors having a dry matter content up to 40 %. The method is based on a potentiometric titration with hydrochloric acid and is intended for black liquor samples with an initial pH ≥ 11,0. The lower limit of determination is 0,1 g/l of eq. NaOH.

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