
Black Iron Oxide, also known as Pigment Black 11 (PBk11), is a high-performance inorganic black pigment widely used in construction, coatings, plastics, and ceramics. It is known for its excellent weather resistance, UV stability, and strong tinting strength, making it ideal for both indoor and outdoor applications.
We are a trusted Black Iron Oxide manufacturers, supplier, and exporter in India, offering premium quality pigments for industrial use.
General Specification
| Parameter | Specification | Result |
|---|---|---|
| Appearance / Shade | Black Powder | Black Powder |
| Density | 4.5 – 5.2 g/cm³ | 4.8 g/cm³ |
| Oil Absorption | 15 – 25 g/100g | 20 g/100g |
| pH (10% Slurry) | 5.0 – 8.0 | 6.5 |
| Moisture Content | ≤ 1.0% | 0.8% |
| Heat Resistance | Up to 300°C | 300°C |
| Light Fastness | 7 – 8 | 8 |
| Acid Resistance | 5 | 5 |
| Alkali Resistance | 5 | 5 |
| Tinting Strength | 95 – 105% | 100% |
| Residue on 325 Mesh | ≤ 0.5% | 0.2% |
Notes: * For more detailed specification and technical data please Contact Us.
Technical Information
- Product Name : Black Iron Oxide
- C.I. Name : Pigment Black 11 (PBk11)
- C.I. Number : 77499
- CAS Number : 1317-61-9
- Chemical Formula : Fe3O4
- Chemical Class : Iron Oxide Pigment
Most Commercially Used Grades
- Pigment Black 6
- Pigment Black 7
- Pigment Black 11
- Pigment Black 28
- Pigment Black 30
Key Features
- Deep black shade with high opacity
- Excellent light fastness and weather resistance
- Superior UV stability for outdoor applications
- High tinting strength and good dispersion
- Heat resistant and chemically stable
- Eco-friendly and non-toxic inorganic pigment
Applications
Black Iron Oxide (PBk11) is widely used in:
- Construction materials (cement, concrete, pavers, tiles)
- Paints & industrial coatings
- Plastics & masterbatches
- Ceramics & tiles
- Rubber products
- Asphalt and road marking
Packaging Options
We offer secure and export-ready packaging:
- 25 kg HDPE bags
- Paper bags
- Jumbo bags
- Customized packaging available
Storage Conditions
- Store in tightly closed containers
- Keep in a cool, dry, ventilated area
- Protect from moisture and sunlight
Handling Conditions
- Avoid inhalation of dust
- Avoid contact with skin and eyes
- Use proper PPE
Why Choose Us?
- Leading Black Iron Oxide manufacturers in India
- Consistent high-quality production
- Competitive pricing for bulk orders
- Reliable global export support
- Custom solutions for industrial needs
FAQs
What is Black Iron Oxide used for?
Black Iron Oxide is widely used in construction materials, coatings, plastics, and ceramics due to its durability and deep black color.
Is Pigment Black 11 suitable for outdoor applications?
Yes, PBk11 offers excellent weather resistance and UV stability, making it ideal for outdoor use.
What is the difference between Pigment Black 7 and Black Iron Oxide?
Pigment Black 7 is a carbon black pigment mainly used in inks and plastics, while Pigment Black 11 is an iron oxide pigment used in construction and coatings for better weather resistance.
Do you supply Black Iron Oxide in bulk?
Yes, we supply bulk quantities with customized packaging and export services worldwide.
Is Black Iron Oxide eco-friendly?
Yes, it is a non-toxic, environmentally stable inorganic pigment suitable for various industrial applications.

