Description

Zinc Stannate CAS NO 39467-17-9 is an inorganic compound widely recognized as an effective flame retardant and smoke suppressant. Its primary value lies in its ability to provide non-halogenated, environmentally friendly fire protection for various polymer systems. This product is essential for manufacturers in the plastics, rubber, and coatings industries seeking to enhance the fire safety of their materials while meeting stringent environmental regulations.

Application

• As a synergistic flame retardant and smoke suppressant in PVC, polyolefins, and engineering plastics.
• In the formulation of fire-resistant cables and wires for construction and automotive applications.
• For enhancing the fire safety of rubber products, including seals, gaskets, and conveyor belts.
• As a component in intumescent coatings and fire-retardant paints for structural steel and wood.
• In the production of flame-retardant textiles and fabrics.
• As a stabilizer and flame retardant additive in certain specialty elastomers.

Basic Information

Product Name	Zinc Stannate
CAS No.	39467-17-9
Molecular Formula	ZnSnO3 • xH2O (or Zn2SnO4)
Molecular Weight	Varies by hydrate form (Anhydrous: ~286.08 g/mol)
Synonyms	Zinc Tin Oxide; Stannic Acid, Zinc Salt; Tin Zinc Oxide; Zinc Stannate Trihydrate; Flame Retardant ZS; ZS; Zinc Tin Trioxide; Zinc (meta)stannate
EINECS	254-455-8

Quality Control

Our Zinc Stannate is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent performance as a flame retardant, including analysis of chemical composition, particle size distribution, and thermal stability. A Certificate of Analysis (COA) detailing key specifications is provided with every shipment to guarantee product integrity and traceability.

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 the container is sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white fine powder
Identification (IR)	Conforms
Assay (as ZnSnO3)	≥ 98.0 %
Zinc (Zn) Content	Contact for details
Tin (Sn) Content	Contact for details
Loss on Drying	≤ 2.0 %
Particle Size (D50)	1 - 5 µm
Heavy Metals (as Pb)	≤ 20 ppm

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