63588-34-1 Cobaltate(4-), ((((nitrilo-kappaN)tris(methylene))tris(phosphonato-kappaO))(6-))-, tetrapotassium, (T-4)- EINECS 264-339-8 Tetrapotassium (((nitrilotris(methylene))tris(phosphonato))(6-)-N,O,O'',O'''')cobaltate(4-) Tetrapotassium cobaltous nitrilotri(methylenephosphonate)