Description

Sodium Antimonate is a high-purity inorganic compound widely used as a key opacifying and fining agent in the glass and ceramics industries. Its primary value lies in its ability to effectively eliminate bubbles and impart a brilliant white, opaque finish to glassware, ceramic glazes, and vitreous enamels. This product is essential for manufacturers of high-quality tableware, architectural glass, ceramic tiles, and specialty glasses requiring precise control over clarity and color.

Application

• Glass Manufacturing: Acts as a primary fining agent to remove gaseous inclusions (seeds and blisters) and as an opacifier to produce brilliant white, opaque glass for tableware, cosmetic containers, and architectural panels.
• Ceramic Glazes & Enamels: Used as a key opacifying component in ceramic frits, glazes, and vitreous enamels to achieve a consistent, bright white, and non-translucent finish on tiles, sanitaryware, and cookware.
• Flame Retardant Synergist: Functions as an effective synergist in halogen-based flame retardant formulations for plastics, textiles, and coatings, enhancing char formation and reducing smoke emission.
• Catalyst Production: Serves as a precursor or component in the manufacture of certain catalysts used in organic synthesis and petrochemical processes.
• Pigment & Ceramic Colorant: Utilized in the production of certain yellow pigments and as a stabilizer in other ceramic colorants.
• Electronic Ceramics: Employed in the formulation of some dielectric and piezoelectric ceramic compositions.

Basic Information

Product Name	Sodium Antimonate
CAS No.	15432-85-6
Molecular Formula	NaSbO₃
Molecular Weight	192.75 g/mol
Synonyms	Antimonic acid (HSbO₃), sodium salt; Sodium metaantimonate; Antimony sodium oxide; Sodium hexahydroxoantimonate; Sodium stibate; Sodium antimonate(V); KS; S-5000 (trade name); Finishing agent KS
EINECS	239-444-3

Quality Control

Our Sodium Antimonate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high performance. The product undergoes rigorous analytical testing, including assay (Sb₂O₅ content), impurity profiling, and physical property verification. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We can support compliance with relevant industry standards, including REACH, upon request.

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 and reducing agents.

Specification

Item	Specification
Appearance	White fine powder
Assay (as Sb₂O₅)	≥ 98.5 %
Antimony (Sb) Content	≥ 63.0 %
Sodium Oxide (Na₂O) Content	Contact for details
Iron (Fe)	≤ 0.01 %
Lead (Pb)	≤ 0.005 %
Arsenic (As)	≤ 0.005 %
Chloride (Cl)	≤ 0.02 %
Sulfate (SO₄)	≤ 0.05 %
Loss on Ignition (LOI)	≤ 0.5 %
Particle Size (D50)	Contact for details

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