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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

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