Description

Diantimony Tetrapotassium Heptaoxide is a specialized inorganic compound with the CAS number 29638-69-5. This material serves as a critical precursor and additive in advanced material synthesis and industrial processes, valued for its unique antimony-potassium oxide composition. It is essential for manufacturers and R&D facilities in sectors such as specialty glass, ceramics, and flame retardant formulations seeking consistent, high-purity inorganic reagents.

Application

• As a key component in the formulation of specialty glasses and optical materials.
• Used as a precursor in the synthesis of advanced ceramic materials and coatings.
• Acts as a flame retardant synergist in specific polymer and textile applications.
• Employed in catalytic systems and as a doping agent in material science research.
• Serves as a raw material in the production of certain pigments and inorganic colorants.
• Utilized in laboratory settings for the preparation of other antimony and potassium-containing compounds.

Basic Information

Product Name	Diantimony Tetrapotassium Heptaoxide
CAS No.	29638-69-5
Molecular Formula	K4Sb2O7
Molecular Weight	481.97 g/mol
Synonyms	Potassium Antimonate (V); Tetrapotassium Diantimony Heptaoxide; Potassium Pyroantimonate; Dipotassium Antimonate; Antimonic Acid, Dipotassium Salt; KSbO3 (common notation); IUPAC: Tetrapotassium di-μ-oxido-bis(oxidoantimonate(V))
EINECS	Contact for details

Quality Control

Our Diantimony Tetrapotassium Heptaoxide is produced under stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets precise compositional and purity standards. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical specifications is provided with every shipment to guarantee traceability and batch-to-batch consistency for our industrial partners.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store in a cool, dry place at room temperature (15-25°C) with low humidity. Ensure the container is kept sealed when not in use to prevent moisture absorption and potential caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to standard
Assay (K4Sb2O7)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.1 %
Particle Size (Typical)	Contact for details

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