12036-22-5

Basic information

• Product Name: TUNGSTEN (IV) OXIDE
• Synonyms: Tungsten(IV) oxide, 99.9% (metals basis);Wolfram(IV)dioxide;Einecs 234-842-7;Tungsten(IV) oxide -100 mesh, 99.99% trace metals basis;Tungsten(IV) oxide, 99.9% trace metals basis;Tungsten oxide (WO2);WO2;TUNGSTEN DIOXIDE
• CAS NO: 12036-22-5
• Molecular Formula: O2W
• Molecular Weight: 215.84
• EINECS: 234-842-7
• Product Categories: TungstenMetal and Ceramic Science;Catalysis and Inorganic Chemistry;Chemical Synthesis;Oxides;Tungsten;metal oxide
• Mol File: 12036-22-5.mol
• Article Data: 0

Chemical Properties

• Melting Point: 1500-1600°C
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: brown/Powder
• Density: 12,11 g/cm3
• Water Solubility: Soluble in acid and potassium hydroxide. Insoluble in water.
• CAS DataBase Reference: TUNGSTEN (IV) OXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: TUNGSTEN (IV) OXIDE(12036-22-5)
• EPA Substance Registry System: TUNGSTEN (IV) OXIDE(12036-22-5)

Safety Data

• Hazard Codes: Xi
• Statements: 37
• Safety Statements: 26-36
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 12036-22-5(Hazardous Substances Data)

Usage

Description

Tungsten (IV) oxide, also known as wolfram (IV) oxide, is a chemical compound with the formula WO2. It is a brown powder that may turn purple upon standing. TUNGSTEN (IV) OXIDE is formed when tungsten (VI) oxide (WO3) is reduced by hydrogen gas (H2) at temperatures between 575°C and 600°C.

Uses

Used in Metallurgical Industry:
Tungsten (IV) oxide is used in the production of tungsten and tungstates, which are essential materials in various industrial applications, including the manufacturing of high-temperature alloys and superalloys.
Used in Manufacturing Industry:
TUNGSTEN (IV) OXIDE is also utilized in the production of alloys, which are known for their high strength, hardness, and resistance to wear and corrosion. These alloys find applications in various industries, such as aerospace, automotive, and electronics.
Used in Textile Industry:
Tungsten (IV) oxide is employed in fire-proofing fabrics, providing enhanced safety and protection against fire hazards in industries where fire resistance is crucial, such as aerospace, military, and firefighting.
Used in Ceramic Industry:
As a ceramic pigment, tungsten (IV) oxide imparts unique color and aesthetic properties to ceramics, making it suitable for use in the production of decorative and functional ceramic products.
Used in Scientific Research:
Tungsten (IV) oxide is used to study its chromism, photocatalysis, and sensing capabilities, which have potential applications in various fields, such as environmental remediation, energy conversion, and sensing technologies.
Used in Analytical Chemistry:
Tungsten (IV) oxide is associated with rhenium trioxide particles and is used for the detection of protonatable, radical, and precharged species under laser desorption ionization. This application is valuable in analytical chemistry for the identification and analysis of various chemical species.

Flammability and Explosibility

Nonflammable

InChI:InChI=1/2O.W/q2*-2;+4