Description

Antimonypentoxide is a high-purity inorganic compound, also known as antimony(V) oxide, with the molecular formula Sb₂O₅. This material is valued for its role as a specialized flame retardant synergist and a critical precursor in the production of antimony-based catalysts and electronic materials. It is essential for manufacturers in the plastics, textiles, and specialty chemical industries seeking to enhance fire safety and develop advanced inorganic compounds.

Application

• Flame Retardant Synergist: Used in combination with halogenated compounds to significantly improve flame retardancy in plastics (e.g., PVC, polyolefins), textiles, and rubber.
• Catalyst Production: Serves as a key raw material for manufacturing antimony-based catalysts used in PET (polyethylene terephthalate) resin polymerization.
• Ceramics & Glass: Acts as an opacifier and fining agent in the production of specialty glasses and ceramic glazes.
• Electronic Materials: Utilized in the formulation of varistors and other electronic ceramics for its semiconducting properties.
• Chemical Intermediate: An important precursor for the synthesis of other antimony salts and compounds in industrial chemistry.
• Pigment Manufacturing: Employed in the production of certain yellow pigments and stains.

Basic Information

Product Name	Antimonypentoxide
CAS No.	215-237-7
Molecular Formula	Sb₂O₅
Molecular Weight	323.52 g/mol
Synonyms	Antimony(V) oxide; Diantimony pentoxide; Antimonic oxide; Stibic anhydride; Antimony pentoxide; Antimony pentaoxide; Sb₂O₅
EINECS	244-054-0

Quality Control

Our Antimonypentoxide is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, including testing for key parameters such as antimony content, particle size distribution, and impurity levels. Certificates of Analysis (COA) are available for every shipment upon request, documenting compliance with agreed specifications.

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 tightly sealed to minimize exposure to atmospheric moisture. Separate from strong acids, strong bases, and reducing agents.

Specification

Item	Specification
Appearance	Yellowish-white powder
Identification (IR)	Conforms
Assay (as Sb₂O₅)	≥ 99.0 %
Antimony (Sb) Content	≥ 74.5 %
Loss on Drying (105°C)	≤ 1.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO₄)	≤ 0.02 %
Iron (Fe)	≤ 0.005 %
Lead (Pb)	≤ 0.002 %
Arsenic (As)	≤ 0.001 %
Particle Size (D50)	1-10 μm (or as specified)

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