Functional Roles
Industries Served
Physical Properties
melting_point
-92.2 u00b0F for 70% solution (ICSC, 2024)
boiling_point
152 u00b0F at 760 mmHg for 70% solution (ICSC, 2024)
density
1.23 for 70% solution (ICSC, 2024) - Denser than water; will sink
solubility
Miscible (ICSC, 2024)
vapor_pressure
150 mmHg at 77 u00b0F (partial pressure for 70% solution) (ICSC, 2024)
flash_point
Not Flammable (EPA, 1998)
ph
In water a weak acid
GHS / SDS Safety
Danger
Acute Toxic
Irritant
Health Hazard
Compressed Gas
Corrosive
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H310 (99.8%): Fatal in contact with skin [Danger Acute toxicity, dermal]
- H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H280: Contains gas under pressure; may explode if heated [Warning Gases under pressure]
- H331: Toxic if inhaled [Danger Acute toxicity, inhalation]
- H314 (> 99.9%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H311: Toxic in contact with skin [Danger Acute toxicity, dermal]
- H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H300: Fatal if swallowed [Danger Acute toxicity, oral]
- H310: Fatal in contact with skin [Danger Acute toxicity, dermal]
- H330 (99.8%): Fatal if inhaled [Danger Acute toxicity, inhalation]
- H300 (99.8%): Fatal if swallowed [Danger Acute toxicity, oral]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
- H318 (19.4%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]
- H290: May be corrosive to metals [Warning Corrosive to Metals]
Chemical Identity
| CAS Number | 7664-39-3 |
| IUPAC Name | fluorane |
| InChI Key | KRHYYFGTRYWZRS-UHFFFAOYSA-N |
| PubChem CID | 14917 |
Synonyms & Trade Names
Full Description
Hydrofluoric Acid (HF) is a highly corrosive inorganic acid with molecular formula FH that serves as a pH adjustment agent in industrial processes. This aqueous solution is utilized across industrial manufacturing, mining, and oil & gas operations where precise pH control is required. HF is miscible with water and exhibits a density of 1.23 for 70% solution, making it denser than water.