Iron Oxide Manufacturers
USA Ferric Oxide Typical Analysis
1. PRODUCT ANALYSIS* (in percent by weight)

 

TYPE REGULAR GRADE 
BF-1
MILLED GRADE 
BF-95M
FINE-MILLED GRADE 
BF-99
Fe2O3  99.1% by wt.  99.1% by wt.  99.1% by wt. 
METALS METALS METALS METALS
MnO  0.325  0.325  0.325 
Al2O3  0.045  0.045  0.045 
Cr2O3  0.028  0.028  0.028 
NiO  0.009  0.009  0.009 
Mo2O3  0.005  0.005  0.005 
ZnO  0.005  0.005  0.005 
PbO  0.001  0.001  0.001 
SnO  0.005  0.005  0.005 
TiO2  0.001  0.001  0.001 
V2O3  0.002  0.002  0.002 
CuO  0.004  0.004  0.004 
NON-METALS NON-METALS NON-METALS NON-METALS
SiO  0.04  0.04  0.04 
CaO2  0.030  0.030  0.030 
MgO  0.008  0.008  0.008 
Na2 0.001  0.001  0.001 
K2 0.001  0.001  0.001 
0.015  0.015  0.015 
0.011  0.011  0.011 
Cl  0.110  0.110  0.110 

 
2. VOLATILES & MOISTURE CONTENT (in percent by weight)

 

TYPE REGULAR GRADE BF-1 MILLED GRADE BF-95M FINE-MILLED GRADE 
BF-99
Moisture  0.08  0.08  0.07 
LOI  0.22  0.22  0.35 


3. PHYSICAL PROPERTIES** 

 
Fisher Size  0.70 microns  0.40 microns  0.60 microns 
BET Size  5.00 m2/g  6.40 m2/g  6.00 m2/g 
Bulk Density  31.50 lbs/ft3  57.26 lbs/ft3  39.00 lbs/ft3 
Tap Density  44.50 lbs/ft3  75.89 lbs/ft3  54.00 lbs/ft3 


4. PRODUCT SCREEN ANALYSIS**
Percent passing indicated screen size using wet screen method (with light brushing) 

 
-100 mesh  >99.5%  100%  100% 
-140 mesh  >94.5%  >99.9%  100% 
-170 mesh  >93.5%  >99.5%  100% 
-200 mesh  >85.0%  >99.0%  100% 
-325 mesh  >70.0%  >95.0%  >99.9% 
-400 mesh  >99.6% 

 * All chemical analyses except S and P calculated as oxides of designated ion. 
** Can be varied according to customer specifications.