Description

Potassium Stannate Trihydrate is an inorganic tin compound widely used as a key source of stannate ions in various industrial processes. Its primary value lies in its ability to provide a stable and soluble form of tin for electroplating and surface treatment applications. This product is essential for manufacturers in the electronics, metal finishing, and glass coating industries seeking to apply uniform, corrosion-resistant tin or tin alloy layers.

Application

• Tin and Tin-Alloy Electroplating: A fundamental component of alkaline tin plating baths for depositing bright, solderable, and corrosion-resistant coatings on steel, copper, and other base metals.
• Glass Manufacturing: Used in the production of electrically conductive coatings on glass, such as for touchscreens, display panels, and energy-efficient windows.
• Ceramic Glazes and Pigments: Acts as a opacifier and color stabilizer in ceramic glazes, contributing to whiteness and durability.
• Catalyst Precursor: Serves as a starting material in the synthesis of catalysts for organic reactions and hydrogenation processes.
• Textile Treatment: Employed in flame-retardant and weight-increasing treatments for fabrics.
• Intermediate for Other Tin Chemicals: Used in the synthesis of other industrially important tin compounds, including other stannates and organotin derivatives.

Basic Information

Product Name	Potassium Stannate Trihydrate
CAS No.	12027-61-1
Molecular Formula	K2SnO3 · 3H2O
Molecular Weight	298.95 g/mol
Synonyms	Dipotassium Tin Trioxide Trihydrate; Stannic Acid, Dipotassium Salt, Trihydrate; Potassium Stannate(IV) Trihydrate; Tin Potassium Oxide Trihydrate; Dipotassium Trioxostannate Trihydrate; Tin Potassium Salt; K2SnO3·3H2O
EINECS	234-735-7

Quality Control

Our Potassium Stannate Trihydrate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications for consistent performance in your applications. A Certificate of Analysis (COA) detailing purity, assay, and impurity levels is provided with every shipment to guarantee traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation. Keep away from strong acids.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (K2SnO3·3H2O)	≥ 98.0 %
Tin (Sn) Content	≥ 39.0 %
Potassium (K) Content	≥ 25.5 %
Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 0.005 %
Iron (Fe)	≤ 0.005 %

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