USE OF GLYCINE-N,N-DIACETIC ACID DERIVATIVES AS BIODEGRADABLE COMPLEXING AGENTS FOR ALKALINE EARTH AND HEAVY METAL IONS, AND METHOD OF PREPARING THEM

摘要

Disclosed is the use of glycine-N, N-diacetic acid derivatives and their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts as complexing agents fo r alkaline earth and heavy metal ions, except with .alpha.-alanine-N, N-diacetic acid, as textile detergent builders in powdered detergent formulations and as calcium sequestering agen ts in oral hygiene products.