Description

Antimony(V) Sodium Trioxide 1/4-Water is a high-purity inorganic antimony compound, also known as sodium hexahydroxoantimonate(V). This specialized chemical serves as a critical precursor and catalyst in advanced material synthesis and industrial processes, offering a controlled source of antimony(V). It is essential for manufacturers and R&D facilities in sectors requiring precise antimony chemistry, such as flame retardant production, specialty glass manufacturing, and as a catalyst in organic synthesis.

Application

• Flame Retardant Synergist: A key component in the formulation of halogen-free flame retardants for plastics, textiles, and coatings.
• Specialty Glass & Ceramics: Used as a fining agent and additive to modify the optical and electrical properties of specialty glasses and ceramic glazes.
• Catalysis: Acts as a catalyst or catalyst precursor in selective oxidation and polymerization reactions within fine chemical synthesis.
• Electroplating & Surface Treatment: Employed in electroplating baths for depositing antimony-containing alloys with specific hardness and corrosion resistance.
• Analytical Reagent: Serves as a standard or reagent in analytical chemistry for the determination of other elements.
• Pharmaceutical Intermediates: Used in the controlled synthesis of certain pharmaceutical active ingredients.

Basic Information

Product Name	Antimony(V) Sodium Trioxide 1/4-Water
CAS No.	10049-22-6
Molecular Formula	NaSb(OH)6 • 0.25H2O or NaSbO3 • 2.25H2O
Molecular Weight	Approx. 264.79 g/mol (anhydrous basis)
Synonyms	Sodium Hexahydroxoantimonate(V); Sodium Antimonate; Sodium Metaantimonate; Antimonic Acid Sodium Salt; Sodium Trioxoantimonate(V); KS Antimony; Sodium Antimony Oxide; Sodium Antimonate(V)
EINECS	233-171-7

Quality Control

Our Antimony(V) Sodium Trioxide 1/4-Water is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, composition, and physical properties. We provide full traceability and Certificates of Analysis (COA) are available for all shipments, detailing key parameters such as assay, heavy metal content, and loss on drying.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong acids and strong reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (as NaSbO3•2.25H2O)	≥ 98.0 %
Loss on Drying	10.0 - 13.0 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.02 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 20 ppm
Arsenic (As)	≤ 5 ppm

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