Description

Spinels, Chromium Iron Manganese Brown is a high-performance, inorganic mixed metal oxide pigment belonging to the spinel mineral group. This compound is valued for its exceptional thermal stability, chemical inertness, and durable brown coloration, making it a critical material for demanding industrial applications. It is primarily utilized by manufacturers in the ceramics, coatings, plastics, and construction materials sectors seeking reliable, fade-resistant pigmentation.

Application

• Ceramic Glazes and Bodies: Imparts stable brown hues in tiles, sanitaryware, and tableware fired at high temperatures.
• Industrial Coatings: Used in heat-resistant paints, powder coatings, and coil coatings for architectural and automotive components.
• Plastics and Masterbatches: Provides coloration for engineering plastics, fibers, and PVC that require UV stability and heat processing.
• Construction Materials: A key pigment for concrete paving stones, roofing granules, and mortars.
• Specialty Glass: Employed in the production of colored glass and glass enamels.
• Artists' Colors: Used in high-quality artists' paints and inks for its permanence and lightfastness.

Basic Information

Product Name	Spinels, Chromium Iron Manganese Brown
CAS No.	68555-06-6
Molecular Formula	Typically (Fe,Cr,Mn)₃O₄ / Mixed Oxide
Molecular Weight	Contact for details
Synonyms	Chromium Iron Manganese Brown Spinel; C.I. Pigment Brown 29; Manganese Chromite Brown Spinel; Iron Chromium Manganese Oxide Brown; (Fe,Cr,Mn)₃O₄; Mixed Metal Oxide Brown Pigment; Inorganic Brown Pigment 68555-06-6; Heat-Resistant Brown Pigment
EINECS	Contact for details

Quality Control

Our Chromium Iron Manganese Brown Spinel is manufactured under a stringent quality management system. Each batch is tested to ensure consistent color performance, chemical composition, and physical properties. Certificates of Analysis (COA) detailing purity, heavy metal content, and key specifications are provided with every shipment to guarantee compliance with industry and regulatory standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep the container sealed to prevent moisture absorption and contamination from foreign materials.

Specification

Item	Specification
Appearance	Fine Brown Powder
Identification (XRD)	Conforms to Spinel Structure
Color Value (L*a*b*)	Contact for details
Particle Size (D50)	< 5 µm (typical)
Oil Absorption	Contact for details
Loss on Ignition (LOI)	< 1.0 %
Water Soluble Salts	< 0.5 %
Heavy Metals (as Pb)	< 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.