GHS Classification: Corrosive (GHS05), Acute Toxicity (GHS06), Health Hazard (GHS08)
Hazard Statements: Causes severe skin burns and eye damage; fatal if inhaled; toxic if swallowed; may cause damage to organs (bones, teeth) through prolonged or repeated exposure.
UN Number: UN 1790
Hazard Class: 8 (Corrosive Substances), 6.1 (Toxic Substances)
Packing Group: I
GTC-399

Inorganic Acids
Hydrogen Fluoride
- CAS No.
- 7664-39-3
- Catalogue ID
- GTC-399
Hydrogen Fluoride, CAS 7664-39-3. Source-derived identification, physical data and applications are provided for catalogue reference; request the current specification, COA and SDS for the required grade.
Hydrofluoric acid; HF; Anhydrous hydrogen fluoride; Aqueous hydrogen fluoride; Etching acid; Fluorohydric acid; Fluoric acid; HFA
Supplied catalogue source: GTC-399 · Page 45
Reference data — confirm before ordering or use
The information below is a structured migration from the supplied catalogue snapshot. It is not a current product specification, COA or SDS. Confirm the actual supplier, grade, batch documents, classification, packing and destination requirements for your enquiry.
Basic Information of Anhydrous Hydrogen Fluoride
| CAS No.: | 7664-39-3 |
|---|---|
| EC No.: | 231-634-8 |
| Linear Formula: | HF |
| Molecular Weight: | 20.01 |
| Appearance: | Colorless gas at room temperature; colorless, fuming liquid below19.5 °C |
| Odor: | Possesses an extremely pungent odor. |
| Melting Point: | 19.5 °C |
| Boiling Point: | -83 °C |
| Density: | 1.15 g/mL at 25 °C(lit.) |
| Solubility: | Highly soluble in water, forming hydrofluoric acid. |
| Reactivity: | Extremely reactive and highly corrosive to virtually all materials except certain plastics (like PTFE) and some specific alloys. Undergoes strong exothermic reactions with water. |
| Toxicity: | Extremely toxic via inhalation, ingestion, and skin contact. Causes severe, penetrating burns that may not be immediately painful but can be life-threatening. Highly hazardous. |
| RIDADR: | UN 1790 8, 6.1 /PG 1 |
| Chemical Structure: | ![]() |
Our commitment to delivering high-purity Anhydrous Hydrogen Fluoride ensures a reliable and efficient component for your critical processes, offering consistent quality for diverse industrial needs, while prioritizing uncompromising safety in handling and logistics.
Primary Applications of Anhydrous Hydrogen Fluoride (AHF)
Anhydrous Hydrogen Fluoride's unparalleled reactivity and its role as the fundamental source of fluorine make it an indispensable compound with extensive applications across various high-tech and heavy industrial sectors:
Fluorocarbon Production:
The vast majority of AHF is consumed in the manufacturing of fluorocarbons, including hydrofluorocarbons (HFCs), hydrochlorofluorocarbons (HCFCs) for refrigerants, blowing agents, and propellants. It is also critical for producing high-performance fluoropolymers like PTFE (Teflon), FKM, and PVDF, which are essential in diverse applications from non-stick coatings to chemical-resistant linings.
Aluminum Production:
AHF is essential for the synthesis of aluminum trifluoride (AlF₃) and synthetic cryolite (Na₃AlF₆). These compounds serve as crucial fluxing agents in the electrolytic reduction of alumina to produce primary aluminum metal, significantly lowering the melting point of the electrolyte.
Petroleum Refining (Alkylation):
It is widely used as a highly effective catalyst in the alkylation process within petroleum refineries. This process combines isobutane with olefins to produce alkylate, a high-octane gasoline blending component.
Uranium Processing:
AHF plays a critical role in the processing of uranium ores and the subsequent conversion to uranium hexafluoride (UF₆), which is then enriched for use as fuel in nuclear power plants.
Specialty Chemical & Pharmaceutical Synthesis:
AHF acts as a powerful fluorinating agent and a catalyst in the synthesis of a wide variety of specialty chemicals, fluorinated pharmaceuticals, and agrochemicals, where the precise introduction of fluorine atoms is required for specific properties.
Exceptional Purity & Consistent Quality: Our AHF is manufactured to the most stringent purity and concentration specifications, crucial for optimizing performance in highly sensitive processes like semiconductor precursor production and fluorocarbon synthesis.
Expert Technical & Safety Support: Our dedicated team of experienced chemists and highly trained safety specialists is readily available to offer comprehensive guidance on product application, stringent safe handling procedures, emergency response planning, and optimal storage conditions for Anhydrous Hydrogen Fluoride.
Commitment to Quality & Responsible Stewardship: We adhere to the highest industry standards for quality management, environmental responsibility, and product stewardship across all our operations, ensuring peace of mind for our clients and the responsible management of extremely hazardous chemicals.
Hazards Classification



Confirm the current commercial product record.
Include the required grade or purity, quantity, preferred packing, destination country/port and required document set.
- 01Current specification
- 02Batch or sample COA
- 03Product- and supplier-specific SDS
- 04Packing and shipping review
