722 IRON OXIDE BLACK

 Properties and appearance :

Black powder with bright colour,resistance to acids and alkalis,fastness to light,heat.Having the good chemical stability,excellent in tinting strength and hiding power.
Main uses: Used for high quality paints,coloring agent in plastic,rubber industry,also used in chemical fibre,leather making.
Packing : In plastic bags of 25kg net each with outside polypropylene fabric bags.

Specifications

 

Item	Unit	Black 722
Fe3O4 Content	%(m/m)≥	90
Moisture	%     ≤	1.0
Soluble matter in water	%(m/m)≤	0.5
Residue after sifting(45 um)	%     ≤	0.5
Oil absorption	g/100g	15-25
PH in extract water	g/100g	5.0-8.0
Tinting strength(compared with standard)	%     ≥	100±5