Description

Sodium Tungstate is an essential inorganic salt widely utilized in industrial and research applications. Its primary value lies in its role as a key source of tungsten, a critical metal with unique properties. This compound is particularly important for manufacturers and laboratories requiring a stable, water-soluble tungsten precursor. Key industries that rely on Sodium Tungstate CAS NO 11120-01-7 include chemical manufacturing, materials science, and analytical chemistry.

Application

• Tungsten Compound Synthesis: Acts as a fundamental starting material for producing other tungsten chemicals, such as tungsten oxides and tungstic acid.
• Catalyst Production: Used in the formulation of catalysts for various petrochemical and organic synthesis processes.
• Corrosion Inhibitor: Employed in water treatment systems and cooling towers to form protective layers on metal surfaces.
• Fireproofing & Flame Retardants: Incorporated into textiles, wood, and other materials to enhance fire resistance.
• Analytical Reagent: Serves as a reagent in analytical chemistry for phosphate determination and protein precipitation.
• Pigment & Dye Intermediate: Used in the manufacture of certain pigments and dyes for ceramics and paints.
• Electroplating: Applied in electroplating baths for depositing tungsten-containing alloys.
• Biochemical Research: Utilized in laboratory studies as an enzyme inhibitor and for other biochemical applications.

Basic Information

Item	Details
Product Name	Sodium Tungstate
CAS No.	11120-01-7
Molecular Formula	Na2WO4
Molecular Weight	293.82 g/mol
Synonyms	Disodium tungstate; Sodium wolframate; Tungstic acid, disodium salt; Tungstate (WO42-), disodium; Sodium orthotungstate; Na2WO4; Tungstate de sodium (French); Natriumwolframat (German)
EINECS	234-390-8

Quality Control

Our Sodium Tungstate is manufactured under a stringent quality management system to ensure batch-to-batch consistency and reliability. We offer various grades, including technical and high-purity, to meet diverse application needs. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles. Our quality commitment aligns with ISO standards, and we can support compliance documentation for REACH and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic nature, the product must be stored in a cool, dry place with low humidity. Recommended storage temperature is between 15°C and 25°C. Keep the container tightly sealed immediately after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (as Na2WO4·2H2O)	≥ 99.0%
pH (5% solution)	8.0 - 10.0
Chloride (Cl)	≤ 0.01%
Sulfate (SO4)	≤ 0.02%
Heavy Metals (as Pb)	≤ 10 ppm
Iron (Fe)	≤ 0.001%
Loss on Drying	≤ 1.0%

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