Industrial grade 99% Iron oxide CAS 1332-37-2 Brown iron oxide

Synonyms:Brown iron oxide
Synthetic iron oxide brown
Ferric oxide brown
Blended iron oxide brown
Zinc Iron Oxide Brown
Molecular Formula:Fe2O3
Molecular Weight: 159.69
HS Code: 2821100000
Grade: Industrial grade 99%
Hazard Class:General Cargo

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Model:
1332-37-2
Brand:
futurechem
Code:
1332-37-2

Product Description

Certificate of Analysis-COA

Item	Specification	Result
Type	868	—
Content (Fe₂O₃), %	≥90	90.25
Content (Fe₃O₄), %	—	—
Res. On 325mesh, %	≤0.5	0.06
Water Sol. Salts, %	≤1.0	0.59
Volatile Content (105℃), %	≤1.0	0.84
pH Value	3.0–7.0	4.95
Oil Absorption	15–25%	19.34%

Applications

1. Concrete & Building Materials The preferred colorant for concrete, cement products, bricks, tiles and asphalt. Outstanding alkali resistance, weather fastness and UV stability deliver permanent, fade-free color in exterior construction applications.

2. Paints & Coatings A high-performance pigment for architectural, industrial and anticorrosion coatings. Strong hiding power, high tinting strength and excellent dispersion ensure consistent color and durable film performance.

3. Plastics & Rubber Provides stable, heat-resistant coloring for plastics and rubber products. Excellent compatibility and dispersion support uniform color and consistent mechanical properties in molding and extrusion.

4. Ceramics & Glass A reliable colorant for ceramic glazes, tiles and glass products. Stable color development under high firing temperatures ensures consistent, reproducible shades.

5. Cosmetic & Personal Care A cosmetic-grade pigment for eye shadows, foundations and color cosmetics. High purity with low heavy metal content meets strict cosmetic safety requirements.

6. Paper, Inks & Specialty Applications Used for coloring paper, printing inks and specialty products. Consistent quality and stable supply support reliable industrial production.

Production Line

We operate 10+ production lines, backed by a well-stocked raw material warehouse.

Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.

Every order follows a standardized workflow. Key quality control points are set at every stage.

Factory Area

Standardized Process Flow

Production Capacity

Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.

Iron oxide Fe2O3 1332-37-2 Brown iron oxide Synthetic iron oxide brown Ferric oxide brown Blended iron oxide brown Zinc Iron Oxide Brown iron oxide brown pigment for concrete heat resistant brown iron oxide for plastics

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.