related registry number list (CISMeF) : 10124-49-9 (unspecified Fe salt); 13520-56-4 (nonahydrate); 13761-89-2 (hexahydrate);
15244-10-7 (unspecified hydrate); 22569-95-5 (Fe( 3)[2:1] salt tetrahydrate); 35139-28-7
(heptahydrate); 43059-01-4 (monohydrate); 50814-98-7 (basic Fe salt); 51033-89-7 (Fe
salt trihydrate);