Description

Iron(3+) Antimonate is an inorganic compound valued for its role as a high-performance flame retardant synergist and opacifying agent. Its primary commercial significance lies in enhancing the fire resistance and thermal stability of various polymers and coatings while maintaining desirable physical properties. This material is essential for manufacturers in the plastics, paints, and specialty ceramics industries seeking to meet stringent safety and performance standards.

Application

• Flame Retardant Synergist: Used in combination with halogenated compounds to significantly improve the fire-retardant efficiency in plastics like PVC, polyolefins, and engineering polymers.
• Ceramic Opacifier & Colorant: Imparts white opacity and specific color tones in glazes, enamels, and specialty ceramic bodies.
• Glass Manufacturing: Acts as a fining agent and colorant in the production of certain specialty glass types.
• Catalyst & Catalyst Support: Serves as a component or support material in select catalytic processes for organic synthesis.
• Electronic Materials: Utilized in the formulation of certain electronic ceramics and resistive materials.
• Pigment Intermediate: Functions as a precursor in the manufacture of heat-stable inorganic pigments.
• Smoke Suppressant: Helps in reducing smoke generation in flame-retarded polymer systems.

Basic Information

Product Name	Iron(3+) Antimonate
CAS No.	15600-71-2
Molecular Formula	FeSbO4
Molecular Weight	235.56 g/mol
Synonyms	Iron Antimonate; Antimonic Acid (H3SbO4), Iron(3+) Salt; Ferric Antimonate; Iron(III) Antimonate; Iron Antimony Oxide; FeSbO4; Antimony Iron Oxide
EINECS	Contact for details

Quality Control

Our Iron(3+) Antimonate is manufactured under a strict quality management system. Each batch undergoes comprehensive analysis to ensure consistent chemical composition, particle size distribution, and purity. Certificates of Analysis (COA) documenting key parameters such as assay (Fe and Sb content), moisture, and heavy metal limits are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed to minimize exposure to atmospheric moisture. Separate from strong acids and strong reducing agents.

Specification

Item	Specification
Appearance	Yellow to buff-colored powder
Identification (IR/XRD)	Conforms to standard
Assay (as FeSbO4)	≥ 98.0 %
Iron (Fe) Content	22.0 - 24.0 %
Antimony (Sb) Content	50.0 - 52.0 %
Loss on Drying (105°C)	≤ 1.0 %
Particle Size (D50)	1.0 - 5.0 µm (or as specified)
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 5 ppm

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