Table 2. Some commonly available sources of iron and sulfur.

 
Source
Trade name
Content (% iron)
 
 
Inorganic iron:
 
 
Ferrous sulfate
Iron sulfate
20.5
 
 
Ferrous sulfate
Ionate
10.0
 
 
Ferrous sulfate
Bandini 7 iron
7.0
 
 
Ferrous sulfate
Ironite
4.5
 
 
Acidified mining residue
Iron-Sul
20.0
 
 
 
 
Iron Chelates:
 
 
FeEDTA
Sequestrene
12.0
 
 
FeEDTA
Hampene Iron
9.0
 
 
FeDTPA
Sequestrene 330
10.0
 
 
FeEDDHA
Millers Ferriplus
6.0
 
 
FeEDDHA
Sequestrene 138
6.0
 
 
FeHEDTA
Che-Gro Iron
5.0
 
 
FeHEDTA
Versonol Ag Fe
5.0
 
 
 
 
Sulfur:
%sulfur
 
 
Elemental sulfur
Elemental sulfur (powder form)
90.0
 
 
Elemental sulfur
Degra-Sul (prill form)
90.0
 
 
Elemental sulfur
Agri-Sul (prill form)
90.0
 
 
 
 
 
Updated 7/15/02