Description

Tetrafluorotungsten (WF₄) is a key inorganic fluoride compound of tungsten, essential for advanced materials synthesis and chemical vapor deposition (CVD) processes. Its high reactivity and role as a tungsten source make it a critical precursor in the production of specialized coatings, semiconductors, and fine chemicals. This product is primarily utilized by manufacturers and R&D facilities in the electronics, metallurgical, and specialty chemical industries seeking high-purity tungsten intermediates.

Application

• Chemical Vapor Deposition (CVD) & Atomic Layer Deposition (ALD): Acts as a crucial tungsten source for depositing thin films of tungsten, tungsten silicide, or tungsten carbide on semiconductor wafers and precision components.
• Specialty Metallurgy: Used as a fluorinating agent or intermediate in the production of high-purity tungsten metal and tungsten alloys.
• Catalyst Synthesis: Serves as a precursor for synthesizing tungsten-based catalysts used in petrochemical refining and specialized organic synthesis.
• Optical & Ceramic Coatings: Employed in the development of wear-resistant and optically functional coatings for industrial and aerospace applications.
• Research & Development: A fundamental reagent in inorganic and materials chemistry research for exploring new tungsten compounds and nanomaterials.
• Fluorination Reactions: Utilized as a selective fluorinating agent in the synthesis of organofluorine compounds and other specialty fluorinated materials.

Basic Information

Product Name	Tetrafluorotungsten
CAS No.	13766-47-7
Molecular Formula	F₄W
Molecular Weight	259.83 g/mol
Synonyms	Tungsten(IV) fluoride; Tungsten tetrafluoride; WF₄; Wolfram tetrafluoride; Tetrafluorowolfram; Tetrafluorotungsten(IV); Tungsten fluoride (WF4)
EINECS	237-371-4

Quality Control

Our Tetrafluorotungsten is manufactured under stringent process controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD), inductively coupled plasma (ICP) analysis, and moisture testing. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature and reactivity as a fluoride/strong alkali, it must be kept under an inert atmosphere (e.g., argon or nitrogen) and isolated from moisture, acids, and incompatible materials. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Brown to black crystalline solid
Identification (XRD)	Conforms to WF₄ structure
Assay (WF₄)	≥ 98.0 %
Tungsten (W) Content	≥ 70.0 %
Moisture (Karl Fischer)	≤ 0.5 %
Chloride (Cl)	≤ 0.1 %
Metallic Impurities (ICP)	Contact for details

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