Product Name:	Iron Oxide
WCode:	09-019

Sales Specification
Appearance	Red powder	Yellow powder	Black powder	Brown Powder
CAS No:	1309-37-1	51274-00-1	1317-61-9	(combination of yellow and red)
WCode	09-019-01	09-019-02	09-019-03	09-019-04
Molecular Formula:	Fe2O3	Fe2O3.H2O	Fe3O4	N/A
Assay:	95% Min	95% Min	95% Min	N/A
Particle size:	0.4 Micron	0.4 Micron	0.4 Micron	N/A
Relative Coloring powder (compared with the standard)	98% min	98% min	98% min	98% min.
Volatile matter @ 105ºC	2.5 max	2.5 Max	2.5 max	2.5 max
Water soluble matter	0.2% max	0.2% max	0.2% max	0.2% max
Residue on 45um mesh	0.5% max	0.5% max	0.5% max	0.5% max
PH of water suspension	7-9	7-9	7-9	7-9
Oil absorption g/100g	30-35	30-35	25-30	30-35
Total iron-oxide:	90.0% min	82.0% min	93.0% min	90.0% min
Oil resistance	5 grade	5 grade	5 grade	5 grade
Water resistance	5 grade	5 grade	5 grade	5 grade
Alkaline resistance	5 grade	5 grade	5 grade	5 grade
Acid resistance	5 grade	5 grade	5 grade	5 grade
Solvent resistance (alcohol resistance methylbenzene resistance)	5 grade	5 grade	5 grade	5 grade
UV absorption	95% min	95% min	85% min	85% min
Quality Standard	Meet the standard of USP and European Pharmaceutical standard.

Packing

In 25KG kraft paper bag.