Synonyms: Nickelate(3-), (N,N-bis((phosphono-kappaO)methyl)glycinato(5-)-kappaN,kappaO)-, ammonium (1:3), (T-4)-;Triammonium nickelous N-carboxymethylnitrilodi(methylenephosphonate);Nickelate(3-), (N,N-bis((phosphono-kappaO)methyl)glycinato(5-)-kappaN,kappaO)-, triammonium, (T-4)-;Triammonium (N,N-bis(phosphonomethyl)glycinato(5-))nickelate(3-);nickel(2+) N,N-bis({[hydroxy(oxido)phosphanyl]oxy}methyl)glycine ammoniate (1:1:3)