Description

Potassium Stannate is an inorganic tin compound primarily used as a key intermediate and reagent in various industrial processes. Its value lies in its ability to provide a stable, soluble source of stannate ions, which are essential for electroplating and surface treatment applications. This chemical is particularly important for manufacturers in the electronics, glass, and ceramics industries seeking reliable tin deposition and coating solutions.

Application

• Tin Electroplating: A primary component in alkaline tin plating baths for depositing a uniform, adherent tin coating on various metal substrates, including steel, copper, and aluminum.
• Glass & Ceramics Manufacturing: Used as a precursor for creating conductive and reflective tin oxide coatings on glass surfaces (e.g., for energy-efficient windows and touch panels).
• Textile Treatment: Serves as a mordant in dyeing processes to improve color fastness and as a fire-retardant agent for certain fabrics.
• Catalyst & Reagent: Acts as a catalyst in organic synthesis and polymerization reactions, and as a laboratory reagent for analytical chemistry.
• Surface Preparation: Employed in the pretreatment and sensitization of non-conductive surfaces (like plastics) prior to electroless plating.
• Specialty Chemical Synthesis: A starting material for the production of other tin-based compounds and stabilizers.

Basic Information

Product Name	Potassium Stannate
CAS No.	12142-33-5
Molecular Formula	K2SnO3·3H2O
Molecular Weight	298.95 g/mol (Trihydrate)
Synonyms	Dipotassium Tin Trioxide; Potassium Tin Oxide; Stannic Acid, Dipotassium Salt; Tin Potassium Oxide; Tin(IV) Potassium Oxide; K2SnO3; Potassium Hexahydroxostannate(IV)
EINECS	235-255-9

Quality Control

Our Potassium Stannate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability for industrial applications. Each lot undergoes comprehensive analysis, including assay, impurity profiling, and physical property verification. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are kept tightly sealed to prevent absorption of atmospheric moisture, which can lead to caking and reduced efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (as K2SnO3·3H2O)	≥ 98.0 %
Tin (Sn) Content	Contact for details
Potassium (K) Content	Contact for details
Insoluble Matter	≤ 0.1 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.01 %
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 20 ppm

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