Determination of Free Caustic Alkali Content in Alkaline Detergents, Soaps

In Alkaline Detergents and Soaps, it covers sampling and chemical analysis procedures from inorganic alkaline detergents.

Generally speaking, free caustic alkali is expressed as:
— sodium hydroxide (NaOH) for sodium soaps and
— potassium hydroxide (KOH) for potassium soaps.

The amount of free alkali required to prevent a soap from becoming oily is free caustic alkali. For this reason, it is determined in soaps. According to ISO 456, ASTM D 501 Article 9, Article 10, Article 11, Determination of Free Caustic Alkali Content (NaOH/KOH Determination) in Alkaline Detergents and Soaps is carried out.

ISO 456: Surface active agents — Analysis of soaps — Determination of free caustic alkali
ASTM D 501: Standard Test Methods of Sampling and Chemical Analysis of Alkaline Detergents

Free You can contact Nanolab Cosmetic Analysis Laboratory for Caustic Alkali Content Determination (NaOH/KOH Determination).