Ammonium Ferric Sulfate


Product
:
AMMONIUM FERRIC SULFATE 12-HYDRATE
(AMMONIUM IRON(III) SULFATE 12-HYDRATE)
Available Grades
:
LR/EP, AR/GR, and ACS
Mol. Formula
:
NH4Fe(SO4)2.12H2O
Mol. weight
:
482.19
CAS No.
:
7783-83-7


SPECIFICATIONS
:


Sr.
PARAMETER


PARAMETER VALUE
LR / EP
AR / GR
ACS
1. Appearance : Pale violet broken crystalline lumps
2. Test Solution (10% w/v, water)
: The Solution is clear and yellowish-brown
3.
Assay
:
98 – 101%
99.0% min. 98.5 - 101.5%
4.
pH (5% w/v, water)
:
2.0 – 5.0
2.0 – 5.0
--
5.
Maximum limits of impurities


i.
Water insoluble matter :
--
--
0.01%
ii.
Chloride, as Cl : 0.002%
0.0003%
0.002%
iii.
Nitrate, as NO3 : --
--
0.001%
iv.
Calcium, as Ca : --
0.02%
--
v.
Copper, as Cu : --
0.001%
0.003%
vi.
Ferrous ion, as Fe+2 : 0.002%
0.001%
0.001%
vii.
Heavy Metals, as Pb
: --
0.002%
--
viii.
Magnesium, as Mg
: --
0.001%
--
ix.
Manganese, as Mn
: --
0.001%
--
x.
Potassium, as K
: --
0.002%
--
xi.
Sodium, as Na
: --
0.002%
--
xii.
Zinc, as Zn
:
--
0.001%
0.003%


Iron Alum India, Ammonium Iron(III) Sulfate, Ammonium Iron(III) Sulphate,Ammonium Iron(III) Sulfate India, Ammonium Iron(III) Sulphate India

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