Description

Tungsten(IV) Oxide is a high-purity inorganic compound with the chemical formula WO₂. This material is valued for its unique electrical and catalytic properties, making it a critical component in advanced material science and industrial chemistry. It is essential for manufacturers and researchers in sectors requiring precision electronic materials, robust catalysts, and specialized ceramic precursors.

Application

• As a precursor material for the synthesis of tungsten bronzes and other tungsten compounds.
• In the manufacturing of specialized ceramics and glass with specific electrical properties.
• As a catalyst or catalyst support in selective oxidation and hydrogenation reactions.
• In the development of gas sensors and electrochemical devices.
• For research and development in solid-state physics and materials science.
• In the production of conductive coatings and thin films for electronic applications.

Basic Information

Product Name	Tungsten(IV) Oxide
CAS No.	12037-58-0
Molecular Formula	WO₂
Molecular Weight	215.84 g/mol
Synonyms	Tungsten Dioxide; Tungsten Oxide (WO2); Dioxotungsten; Wolfram Dioxide; Tungsten(IV) Dioxide; Brown Tungsten Oxide
EINECS	234-842-7

Quality Control

Our Tungsten(IV) Oxide is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed for key parameters including metallic purity, particle size distribution, and phase composition. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee 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 should be kept under dry conditions to prevent caking or degradation.

Specification

Item	Specification
Appearance	Brown to bronze crystalline powder
Identification (XRD)	Conforms to WO₂ structure
Assay (WO₂)	≥ 99.0%
Tungsten (W) Content	≥ 85.0%
Particle Size (D50)	1-10 µm (or as specified)
Loss on Drying	≤ 0.5%

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