Iron Oxide pigment is used as dye or colorant in various prefabricated concrete parts and architectural products and materials. Yellow iron oxide is directly added into cement to color up various indoor and outdoor cement surfaces, i.e. walls, terraces, ceilings, pillars, corridors, roads, car-park, stations, etc, as well as various building ceramic and glazed ceramics, i.e. facing bricks, floor tiles, roofing tiles, panels, terrazzo, mosaic tiles, artificial marbles, etc.
Iron oxides are chemical compounds composed of iron and oxygen. widespread in nature, play an important
role in many geological and biological processes, and are widely used by humans, e.g., as iron ores, pigments,
catalysts, inthermite (see the diagram) and hemoglobin. Common rust is a form of iron(III) oxide. Iron oxides
are widely used as inexpensive, durable pigments in paints, coatings and colored concretes. Colors
commonly available are in the "earthy" end of the yellow/orange/red/brown/black range.
Specifications:
Items | Black | Yellow | Borwn | Red |
types | 330 | 313 |
| 110,120,130,190 |
Contents(Fe2O3·H2O) % ≥ | 90 | 86 | 88 | 96 |
Oil Absorption ml/100g | 15-25 | 25-35 | 25-35 | 15-25 |
Water soluble salts% ≤ | 0.5 | 0.3 | 0.3 | 0.3 |
Res. on 325 mesh % ≤ | 0.5 | 0.3 | 0.5 | 0.3 |
Moisture % ≤ | 1.5 | 1.0 | 1.5 | 1.0 |
PH Value | 5-8 | 33-7 | 4-7 | 3.5-7 |
Ignition loss (1,000ºC,1/2 h) % ≤ | 5.0 | 14 | --- | 1.0 |
Bulk density g/cm3 | 0.8-1.2 | 0.4-0.6 | 0.5-0.8 | 0.7-1.1 |
Specific gravity g/cm3 | 4.6 | 4.1 | 4.7 | 5.0 |
Tinting Strength(Compared with standard) % | 95-105 | 95-105 | 95-105 | 95-105 |
Color Difference E (Compared with standard) ≤ | 1.0 |
1.0
|
1.0
|
1.0
|
Application
1. Used in many types of paints, including anti-rust paint, water-soluble indoor/outdoor paints and oil-based
paints.
2. Used for dyeing construction materials, such as bricks, for concrete bricks, pavement, colorful tiles,
roofing tiles and man-made marble. Colors for ceramic body.
3. Used in paper industry, esp. rice paper.
4. Used for surface coloration of plastic epoxy floor, color for pitch.
5. Used as a more fade-resistant dye for plastics.
6. Pigment for Cosmetic.
7. Coloring Sugar-coat for medicine tablets.
8.others.
Package
25kg PP bag/kraft bag, or as clients'requirements.
Storage
Stored in ventilated and dry place,pile less than 20 tiers,keep away from goods that affect the quality of the
product against damp. 
