sodium hydroxide in water T=10 - 39°C; pH=8 - 13.23; Product distribution / selectivity;

1: N,N''-Bis[N-(2-methoxyethyl)-carbamoylmethyl]diethylenetriamine-N,N',N''-triacetic acid With hydrogenchloride in water pH=0.5 - 2.87; 2: gadolinium(III) oxide in water T=100°C; pH=0.5; 16.5 h; Heating / reflux; Product distribution / selectivity;