Iron Oxide Brown 686 Color Pigment

Name: Iron oxide brown

CAS: 1332-37-2

Type: Iron Oxide

Color: brown

Other Names: Ferric Oxide brown

EINECS No.: 215-570-8

Iron Oxide Brown

Iron oxide brown 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 brown pigment, insoluble in water, alcohol, ether, dissolved in thermal strength. High thalad and hiding power. Nice light resistance, alkali resistance. No water sealing and oil seepage. The color phase is different from the process, with yellow brown, red brown, black brown, etc.

2. Typical Properties:

Model Number 686
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 (320-mesh screen), %(m/m) ≤ 0.3
PH of water suspension 5~8
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:
Iron oxide brown powder used in coloring of paint, ink, plastic, shoe powder and other products; Coloring of paints, buildings, rubber, plastics, etc

  • 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 brown 686 are package by 25kgs.
It could be stored well for a long time by avoiding directly to contract with moist environment.

Quick Contact
Scroll to Top
What can we do for you?
This website uses cookies to ensure you get the best experience  Privacy policy