الوصف

Email & MSN : ***** Iron Oxide Black Type: **2//***4//***3//***2 Fe3O4: ≥*5//≥*0//≥*5//≥*3 Oil absorption (%): ****5 Residue on bolted (%): ≤0.4 Water soluble: ≤2.0 Moisture (%): ≤1.0 PH-value: **7 Density: 0.**1.2 Particle Shape: spherical Color difference vs standard: ≤1 Tinting strength (%): *****5 Description: Character: 1. Black powder, strong tinting and covering 2. Lightness alkali resistant, only dissolved in heat strong acid Application: ***** coating, strong antirust 2. Pigment of watercolour and grease-paint 3. Tinting of the scagliola and concrete floor 4. material of the magnetic steel in telecommnication