ABSTRACT
Aminopolycarboxylates, aminophosphonates, monomeric polycarboxylates, and polymeric polycarboxylates find broad application as sequestering and chelating ingredients in modern detergent formulations (see Chapter 1, Section II.B). They eliminate hardeners and/or heavy metal ions by complexation or ion exchange; in combination with inorganic builders, they act as ion carriers and/or threshold agents [1]. The alkali salts are not soluble in alcohol; therefore, if a direct determination is not possible, the alcohol-insoluble matter (see Chapter 2, Section VII) is the appropriate starting fraction for qualitative and quantitative analyses.
