Description

Sodium Antimonate is an important inorganic antimony compound, primarily used as an effective opacifier and fining agent in the glass and ceramics industries. Its value lies in its ability to provide superior opacity, chemical durability, and a brilliant white finish to glass and enamel products. This compound is essential for manufacturers of high-quality opal glass, ceramic glazes, and as a flame retardant synergist in certain polymer systems, serving sectors from construction materials to specialty chemicals.

Application

• Primary opacifying agent in the production of opal glass and ceramic glazes.
• Fining agent to remove bubbles and impurities during glass melting processes.
• Key component in the formulation of fire-retardant masterbatches and coatings, often as a synergist.
• Used in the manufacturing of pigments and certain specialty catalysts.
• Raw material in the synthesis of other antimony-based chemicals.
• Additive in the electronics industry for specific ceramic substrates.

Basic Information

Product Name	Sodium Antimonate
CAS No.	33908-66-6
Molecular Formula	NaSbO₃
Molecular Weight	192.74 g/mol
Synonyms	Antimonic acid (H3SbO4), sodium salt; Sodium metaantimonate; Sodium hexahydroxyantimonate; Antimony sodium oxide; Sodium antimonate(V); KS; KS agent; Sodium pyroantimonate
EINECS	251-739-5

Quality Control

Our Sodium Antimonate is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a series of analytical tests including assay, impurity profiling, and physical property checks. A Certificate of Analysis (COA) detailing all specifications and test results is provided with each shipment to guarantee compliance with your technical requirements.

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 away from incompatible materials such as strong acids. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent caking.

Specification

Item	Specification
Appearance	White fine powder
Assay (as NaSbO₃)	≥ 99.0 %
Antimony (Sb) Content	≥ 62.0 %
Sodium (Na) Content	Contact for details
Iron (Fe)	≤ 0.01 %
Lead (Pb)	≤ 0.002 %
Arsenic (As)	≤ 0.001 %
Loss on Drying (105°C)	≤ 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.