Iron Oxide blue Pigment

Name: Iron oxide blue

CAS: 1332-37-2

Type: Iron Oxide

Color: Jewelry Blue

Other Names: Ferric Oxide Blue

EINECS No.: 215-570-8

Iron Oxide Blue

Iron oxide blue have excellent exquisite, superb weatherability, fine dispersion, strong tuning power, stable performance, and is a green and environmentally no-toxic paint, has excellent lightfastness, good heat resistant and alkali resistant.
Good dispersion/hiding power is strong/strong tinting strength.
Widely used in building materials industry, plastic products, coating color, fine grinding materials.


1. Characteristics:
Iron oxide blue main components are composed of magnet ore, and the chemical composition of magnetite is Fe3O4.XH2O, the oxide mineral of the crystal isometric. Dark blue or light blue powder, bright color, strong color strength, slightly hiding force. Powder is hard. Quality Standard: 95 ~ 105% of the oil absorption of 15-30% moisture by 1.0%, and the sieve (200 mesh sieve) is ≤1.0%, and the water solubility is 1.0%. The iron oxide blue inorganic pigment has a high collapse, the light resistance is good, the alkali resistance is poor, and the heat resistance is high, and the temperature is more than 150 degrees, and the crystallization water begins to decompose.

2. Typical Properties:

Model Number Jewelry Blue
Mixed acid method Nitric acid method
Iron content, expressed as Fe2O3 (dried at 105℃),%(m/m) ≤
Volatile matter at 105℃,%(m/m) ≤ 1.0
Water soluble,%(m/m) ≤ 0.3
Water-soluble oxides and salts, represented by C1 and SO1,%(m/m) ≤
Sieve residue (325-mesh screen), %(m/m) ≤ 0.3
PH of water suspension 3.5~7
Oil absorption, g/100g
 Color difference  △E≤
Total calcium content, expressed in CaO, % (m/m) ≤ 0.3
Color (ratio with standard sample) 95-105

3. Recommended application:
Uses in Paint, ink, painting, pigments and crayons, paint cloth, paint paper, plastic products coloring, building ground, floor tiles and other coloring.

  • Used for dyeing construction materials, such as mosaic bricks, for concrete bricks, pavement, colorful tiles,
    roofing tiles and man-made marble.
  • Colors for ceramic body.
  • Used in paper industry, esp. rice paper.
  • Used for surface coloration of plastic epoxy floor, color for pitch.
  • Used as a more fade-resistant dye for plastics.

4. Package and storage:
Iron oxide blue are package by 25kgs.
It could be stored well for a long time by avoiding directly to contract with moist environment.

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