Description

Hydrogen Fluoride CAS NO 7664-39-3 is a highly reactive and corrosive inorganic acid, existing as a colorless gas or fuming liquid. It is a critical industrial chemical valued for its powerful fluorinating and etching capabilities, serving as a fundamental precursor to a vast array of fluorine-containing compounds. This essential material is primarily utilized by the petrochemical, pharmaceutical, electronics (semiconductor), and aluminum production industries for synthesis, surface treatment, and refining processes.

Application

• Fluorochemical Synthesis: Primary feedstock for manufacturing a wide range of fluorinated compounds, including refrigerants (CFCs, HFCs, HCFCs), fluoropolymers (PTFE, PVDF), and pharmaceutical intermediates.
• Aluminum Production: Key component in the production of synthetic cryolite (Na3AlF6), an essential electrolyte in the Hall-Héroult process for aluminum smelting.
• Petroleum Alkylation: Used as a catalyst in alkylation units to produce high-octane gasoline blending components from isobutane and olefins.
• Glass & Metal Etching: Employed for etching, frosting, and polishing glass, as well as for pickling and cleaning stainless steel and other specialty alloys.
• Electronics Manufacturing: Vital for etching silicon wafers and cleaning chemical vapor deposition (CVD) chambers in semiconductor fabrication.
• Uranium Processing: Used in the conversion of uranium oxide (U3O8) to uranium hexafluoride (UF6) for nuclear fuel enrichment.
• Laboratory Reagent: Serves as a potent fluorinating and digesting agent in analytical and research chemistry.

Basic Information

Product Name	Hydrogen Fluoride
CAS No.	7664-39-3
Molecular Formula	HF
Molecular Weight	20.01 g/mol
Synonyms	Hydrofluoric Acid (aqueous solution); Anhydrous Hydrogen Fluoride (AHF); Fluorane; Hydrofluoride; Fluoric Acid; Fluorhydric Acid; UN 1052 (anhydrous); UN 1790 (solution)
EINECS	231-634-8

Quality Control

Our Hydrogen Fluoride is manufactured under stringent process controls to ensure consistent high purity and reliability for industrial applications. Quality is verified through comprehensive analytical testing, including gas chromatography (GC), titration, and spectroscopy. Certificates of Analysis (COA) documenting key parameters such as assay, water content, and specific impurity levels are provided with each shipment to ensure traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area, away from heat, ignition sources, and incompatible materials such as strong bases, metals, and glass. Due to its highly volatile and corrosive nature, containers must be kept upright and sealed in secondary containment constructed of compatible materials (e.g., polyethylene). Storage temperature should be maintained as recommended for the specific grade and concentration.

Specification

Item	Specification
Appearance	Colorless gas or fuming liquid
Identification (IR)	Conforms
Assay (HF)	≥ 99.9%
Water (Karl Fischer)	≤ 0.05%
Sulfuric Acid (as SO4)	≤ 0.01%
Fluorosilicic Acid (as H2SiF6)	≤ 0.01%
Non-Volatile Matter	≤ 0.01%

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