Description

Sodium Tungstate is an inorganic salt of tungsten, widely recognized for its role as a versatile precursor in the production of tungsten metal and other tungsten compounds. Its high solubility and stability in aqueous solutions make it a critical raw material for advanced industrial processes. This product is essential for manufacturers and research facilities in sectors such as chemical synthesis, metallurgy, and material science, where precise control over tungsten chemistry is required.

Application

• Catalyst Production: Used as a precursor in the manufacture of catalysts for the petrochemical and fine chemical industries.
• Tungsten Metal & Alloys: A key intermediate in the production of tungsten metal powder, tungsten carbide, and superalloys.
• Corrosion Inhibitors: Employed in formulations for water treatment and metal surface treatment to prevent corrosion.
• Fireproofing & Flame Retardants: Acts as a component in fire-resistant coatings and materials for textiles and wood.
• Analytical Chemistry: Serves as a reagent in laboratory analysis and biochemical research.
• Pigments & Dyes: Utilized in the production of certain inorganic pigments and colorants.
• Electroplating: Functions in electroplating baths for depositing tungsten-containing coatings.

Basic Information

Product Name	Sodium Tungstate
CAS No.	13472-45-2
Molecular Formula	Na2WO4
Molecular Weight	293.82 g/mol
Synonyms	Sodium Wolframate; Tungstic Acid, Disodium Salt; Disodium Tungstate; Sodium Tungstate Dihydrate (common hydrated form); Natriumwolframat; Tungstate (WO42-), disodium salt
EINECS	236-743-4

Quality Control

Our Sodium Tungstate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your technical requirements.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent absorption of moisture from the air, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as Na2WO4)	≥ 99.0%
pH (5% Solution)	8.0 - 10.0
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.02%
Heavy Metals (as Pb)	≤ 10 ppm
Loss on Drying	≤ 1.0%

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