| abstract |
Kind Code: A1 The present invention is to develop a complexing agent having no toxicological ecological defects. The present invention relates to a method for preparing maleic anhydride (MA), an alkali metal hydroxide and water in a first step in a molar ratio of 2: 0: 3: 5-30 and then ammonia is metered in a molar ratio MA: ammonia 2: 1.5-8 to obtain ammonium iminodisuccinate, which is metal oxide, metal in the second step Reaction with hydroxides (and) or other metal salts or mixtures thereof yields a compound of formula 8 IDA (NH 4 ) x (Na) y (K) z (Me) m ยท (NH 3 ) n Formula 8 The present invention relates to a method for producing a metal salt of ammonium iminodisuccinate, which is characterized in that it is a metal salt of ammonium iminodisuccinate, and a compound itself, an intermediate thereof and its use. [Selection diagram] None |