Description

Tetratungsten Undecaoxide is a high-purity inorganic compound with the chemical formula W4O11. This material is a critical intermediate and functional component in advanced materials science and industrial catalysis, valued for its unique tungsten-oxygen stoichiometry. It is primarily utilized by manufacturers and R&D facilities in the electronics, ceramics, and chemical synthesis sectors seeking precise oxide precursors.

Application

• Catalyst Precursor: Serves as a key starting material in the synthesis of specialized tungsten-based catalysts for petrochemical and fine chemical processes.
• Electronic Materials: Used in the production of specialized semiconductors, conductive coatings, and resistive films.
• Ceramic & Glass Additive: Imparts specific thermal, electrical, or optical properties to advanced ceramics and specialty glass formulations.
• Chemical Vapor Deposition (CVD): Acts as a precursor for depositing tungsten oxide thin films in microelectronics and optical device fabrication.
• Research & Development: Employed in academic and industrial labs for studying tungsten oxide chemistry and developing new functional materials.
• Pigment & Coating Intermediate: Used in the synthesis of high-performance inorganic pigments and anti-corrosion coatings.

Basic Information

Product Name	Tetratungsten Undecaoxide
CAS No.	12608-26-3
Molecular Formula	W4O11
Molecular Weight	879.20 g/mol
Synonyms	Tungsten(4+) Undecaoxide; Tungsten Oxide (W4O11); Tetratungsten Undecaoxide; Tungsten Suboxide; W4O11; Ditungsten Pentoxide (common misnomer); Tungsten Oxide Brown
EINECS	Contact for details

Quality Control

Our Tetratungsten Undecaoxide is manufactured under controlled conditions to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD) for phase identification and inductively coupled plasma (ICP) for elemental assay. A Certificate of Analysis (COA) detailing specific lot results is provided with each shipment, ensuring 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (XRD)	Conforms to W4O11 phase
Assay (W content, ICP)	> 99.0%
Particle Size (D50)	< 10 µm
Loss on Drying	< 0.5 %

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