Iron Oxide Yellow Pigments 313

Name: Iron oxide yellow

CAS: 20344-49-4/243-746-4

Type: Iron Oxide

Color: Yellow

Other Names: Ferric Oxide Yellow

EINECS No.: 257-098-5

Iron Oxide Yellow 313

Iron oxide yellow 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.

Iron oxide yellow pigment has a wide range of uses. It can be used as a pigment or colorant in all kinds of concrete prefabricated parts and building products. It can also be used in various architectural glass and ceramics. It also has certain applications in the magnetic material industry. .


1. Characteristics:
Iron oxide yellow is an inorganic substance with the chemical formula Fe2O3, which is a Lemony yellow to brown powder. The relative density is 2.44~3.60. Melting point 350 ~ 400 ℃. Insoluble in water, alcohol, soluble in acid. The powder is fine and it is a crystalline iron oxide hydrate. Due to the different production methods and operating conditions, the degree of hydration is different, and the crystal structure and physical properties are very different. Good tinting strength, hiding power, light resistance, acid resistance, alkali resistance and heat resistance.

2. Typical Properties:

Model Number 313
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 (63um mesh), %(m/m) ≤ 0.3
Ph of water extract, ml≤ 20
PH of water suspension 3~7
Oil absorption, g/100g
 Lead chromate
Total calcium content, expressed in CaO, % (m/m) ≤ 0.3
Color (ratio with standard sample) 95

3. Recommended application:
Used in many types of paints, including antirust paint, water-soluble indoor/outdoor paints and oil-based paints.

  • Used for Coloring of paints, cement parts, architectural surfaces, plastics, rubber.
  • Colors for ceramic body.
  • Used in the manufacture of watercolours, oils, paints and architectural coatings。
  • 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 yellow 313 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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