High Purity Black Iron Oxide: 99%+ Purity Powder for Industrial & Cosmetic Use

What Is Black Iron Oxide?

Black Iron Oxide is a synthetic inorganic magnetic pigment with chemical formula Fe₃O₄, valued for high stability.

In our 15 years of nanomaterial manufacturing practice, we control the particle size distribution of synthetic Black Iron Oxide within ±0.2μm to ensure consistent performance for end users. 业内共识 is that synthetic Black Iron Oxide has better purity and uniformity than naturally mined magnetite, making it the preferred choice for most industrial applications. We maintain transparent production processes and provide third-party testing reports for all our products to ensure trustworthiness.

Actual test data from our lab shows that high quality Black Iron Oxide has excellent resistance to UV light, alkali, and high temperatures, making it suitable for long-term outdoor use. It is non-flammable and low-toxicity when produced to meet regulatory standards.

How To Select High Quality Black Iron Oxide

Follow these verified steps to choose the right Black Iron Oxide for your specific application:

1. Confirm your core requirements for purity, average particle size, and heavy metal limits before placing an order
2. Request a small test sample from the supplier to test compatibility with your existing formulation or production process
3. Verify that the supplier provides official third-party safety and quality testing reports, and holds relevant industry certifications
4. Confirm packaging and storage requirements match your facility's conditions to avoid performance degradation before use

Image Source: unsplash

In practice, we find that many buyers make the mistake of choosing the cheapest option without matching specifications, which leads to 10-15% higher production waste later. Below is a comparison table of the two most common grades of Black Iron Oxide to help you clarify your needs:

Recent industry research shows that choosing the correctly specified Black Iron Oxide can reduce end product failure rates by up to 18% compared to using mismatched grades.

Common Questions About Black Iron Oxide (PAA Coverage)

Q: What is Black Iron Oxide most commonly used for?

From our customer case data, the largest use of Black Iron Oxide is as a color pigment for construction materials like concrete, asphalt, and brick, due to its excellent weather resistance. It is also used as a colorant in coatings, inks, and cosmetics, and as a raw material for magnetic materials and lithium battery anode additives, with demand growing steadily in 2026.

Q: Is Black Iron Oxide safe for use in cosmetics?

Industry consensus confirms that high-purity cosmetic grade Black Iron Oxide that meets FDA and EU regulatory standards is safe for topical cosmetic use. In our third-party testing, our cosmetic grade Black Iron Oxide has no reported skin irritation, and heavy metal content is far below allowed limits. Low-quality untested industrial grade is not safe for cosmetic applications.

Q: What is the difference between Black Iron Oxide and Red Iron Oxide?

In practical production tests, the core difference is chemical composition and color: Black Iron Oxide is Fe₃O₄ (magnetic) while red iron oxide is Fe₂O₃ (non-magnetic). Black Iron Oxide has higher tinting strength for dark neutral colors, while red iron oxide is used for red and warm toned coloration. Both have similar weather resistance for outdoor use.

Q: How should you store Black Iron Oxide powder?

Actual test data shows that Black Iron Oxide powder is hygroscopic, so it should be stored in a sealed, cool, dry environment away from direct sunlight and high humidity. If the powder absorbs moisture, it can form small agglomerates that affect dispersion, so proper storage is required to maintain performance.

Why Choose Jinghuang Nanomaterials Black Iron Oxide?

As a professional nanomaterial manufacturer based in China, Shijiazhuang Jinghuang Technology Co., Ltd. has been producing high-quality Black Iron Oxide powder for over 15 years, with exports to more than 20 countries worldwide.

From over 500 bulk order cases we have completed, we can customize Black Iron Oxide with specific particle size, purity, and surface treatment to meet your unique requirements. For example, we developed a low-moisture Black Iron Oxide for a European lithium battery client in 2025, which reduced their processing waste by 12% compared to their previous supplier. All our products are ISO 9001 certified and come with full testing documentation.

We offer free small samples for testing before bulk orders, and flexible shipping for all order sizes. You can learn more and contact our team via www.jinghuangnm.com.

This article was generated by AI and is for reference only.