(NH4)2Fe(SO4)2 MW 284.01
Nominal concentration 0.025M (0.025N)
(NH4)2Fe(SO4)2 7.100 g/LT
Stabiliser: H2SO4 5 g/LT
Calibrate by titration with either Ce(SO4)2, K2Cr2O7 or KMnO4 of equivalent molarity immediately before each use.
Application: Reagent for volumetric titrimetry