Description

Sodium Stannate is an important inorganic tin compound, primarily recognized for its role as a key intermediate and functional additive 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 product is critical for manufacturers in the metal finishing, glass, ceramics, and textile industries seeking to enhance product durability and performance.

Application

• Tin and Tin-Alloy Electroplating: A primary component in alkaline plating baths for depositing tin and tin-zinc alloys onto steel, copper, and other metals, providing corrosion resistance and solderability.
• Glass & Ceramics Manufacturing: Used as an opacifier and to impart a brilliant white finish and increased durability to glass and ceramic products.
• Textile Weighting & Fireproofing: Employed in the textile industry to add weight and body to silk and synthetic fabrics, and as a component in flame-retardant treatments.
• Catalyst & Intermediate: Serves as a precursor or catalyst in organic synthesis and the manufacture of other tin-based chemicals.
• Paper & Polymer Stabilizer: Acts as a stabilizer and bleaching agent in paper production and can be used in certain polymer formulations.

Basic Information

Product Name	Sodium Stannate
CAS No.	12058-66-1
Molecular Formula	Na2SnO3•3H2O
Molecular Weight	266.73 g/mol (trihydrate)
Synonyms	Sodium stannate trihydrate; Stannic acid, disodium salt; Disodium trioxostannate; Tin sodium oxide; Sodium hexahydroxystannate(IV); Sodium metastannate; Sodium tin oxide; Stanofor
EINECS	235-030-5

Quality Control

Our Sodium Stannate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications, including assay, impurity profiles, and loss on drying. Certificates of Analysis (COA) documenting these results are provided to guarantee traceability, consistency, and 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). This material is hygroscopic (moisture-sensitive) and strong alkali; keep the container tightly sealed when not in use and store away from acids and incompatible materials.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as Na2SnO3•3H2O)	≥ 98.0 %
Tin (Sn) Content	≥ 42.0 %
Insoluble Matter	≤ 0.5 %
Chloride (Cl)	≤ 0.1 %
Sulfate (SO4)	≤ 0.1 %
Iron (Fe)	≤ 0.01 %
Lead (Pb)	≤ 0.05 %

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