Description

Sodium Tungstate Dihydrate is an essential inorganic salt widely utilized in industrial and research applications. Its primary value lies in its role as a versatile source of tungsten, a critical metal with unique chemical properties. This compound is particularly important for manufacturers and laboratories requiring a stable, water-soluble tungsten precursor. Key industries that rely on this material include chemical manufacturing, materials science, and analytical chemistry for various synthesis and testing processes.

Application

• As a key precursor in the production of tungsten metal, tungsten carbide, and other tungsten compounds.
• In the formulation of corrosion-resistant coatings and fireproofing materials for textiles and wood.
• As a catalyst or catalyst component in various organic synthesis and petroleum refining processes.
• In analytical chemistry as a reagent for the precipitation and detection of alkaloids and proteins.
• For the manufacture of phosphors used in X-ray screens and fluorescent lighting.
• In ceramic glazes and pigments to impart specific colors and properties.
• As a mordant in dyeing processes within the textile industry.
• In biochemical research as an enzyme inhibitor for metabolic studies.

Basic Information

Product Name	Sodium Tungstate Dihydrate
CAS No.	10213-10-2
Molecular Formula	Na2WO4 · 2H2O
Molecular Weight	329.85 g/mol
Synonyms	Sodium Tungstate(VI) Dihydrate; Tungstic Acid, Disodium Salt, Dihydrate; Disodium Tungstate Dihydrate; Sodium Wolframate Dihydrate; Na2WO4.2H2O; Tungstate (WO42-), disodium, dihydrate
EINECS	233-267-0

Quality Control

Our Sodium Tungstate Dihydrate is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming parameters such as assay, impurity profiles, and loss on drying. Our quality commitment supports applications requiring consistent performance and traceability.

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) and must be kept in a low-humidity environment to prevent caking and degradation. Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Na2WO4·2H2O)	≥ 99.0%
pH (5% solution)	8.0 - 10.0
Chloride (Cl)	≤ 0.005%
Sulfate (SO4)	≤ 0.01%
Heavy Metals (as Pb)	≤ 0.001%
Loss on Drying	10.0 - 11.5%

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