FH
20.0064 g/mol
Industrial ChemicalDanger
HYDROFLUORIC ACID
CAS7664-39-3EC231-634-8
Category
Industrial Chemical
Compound Class
Other
Primary Use
glass etching and metal cleaning
Hydrofluoric acid is a highly corrosive solution of hydrogen fluoride in water. It is colorless, acidic, and commonly available in concentrations around 49%.
glass etchingmetal cleaning
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Controlled substances
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Relevant lists:Australia Group Chemical Weapons Precursors
CAS 7664-39-3
Related Compounds
StrongSame Parent
Potassium bifluoride
CAS7789-29-9
etchant for glass
ReferenceSame Category
Ammonia
CAS7664-41-7
fertilizer and industrial chemical precursor
ReferenceSame Category
Sulfuric acid
CAS7664-93-9
Fertilizer, petroleum refining, battery production
ReferenceSame Category
Benzophenone-9
CAS76656-36-5
UV absorber for personal care
ReferenceSame Category
1-Butylpyrrolidine
CAS767-10-2
Chemical intermediate and research compound
Referencestereoisomer of
Lithium fluoride
CAS7789-24-4
Optical systems and X-ray spectroscopy
Related Reading
Safety Reference
Danger
H300Fatal if swallowed
H310Fatal in contact with skin
H314Causes severe skin burns and eye damage
H330Fatal if inhaled
H318Causes serious eye damage
H280Contains gas under pressure; may explode if heated
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H290May be corrosive to metals
H311Toxic in contact with skin
H331Toxic if inhaled
H402Harmful to aquatic life
H317May cause an allergic skin reaction
H341Suspected of causing genetic defects
Customs Tariff Classification
The international HS code for HYDROFLUORIC ACID (CAS 7664-39-3) is 2811.11.
HS code (international, 6-digit)
2811.11
EU CN code (8-digit)
2811 11 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
fluorane
InChIKey
KRHYYFGTRYWZRS-UHFFFAOYSA-N
SMILES
F
Synonyms (68)
- Acid, Fluohydric
- Acid, Fluorhydric
- Acid, Hydrofluoric
- Acide fluorhydrique
- Acide fluorhydrique [French]
- Acido fluorhidrico
- Acido fluorhidrico [Spanish]
- Acido fluoridrico
- Acido fluoridrico [Italian]
- Acidum Fluoricum
- Anhydrous hydrogen fluoride
- Antisal 2B
- Aqueous hydrogen fluoride
- Fluohydric Acid
- Fluorhydric acid
- Fluoride, Hydrogen
- Fluorowodor
- Fluorowodor [Polish]
- Fluorure d'hydrogene anhydre
- Fluoruro de hidrogeno anhidro
- Fluorwasserstoff
- Fluorwasserstoff [German]
- Fluorwaterstof
- Fluorwaterstof [Dutch]
- HYDROFLUORIC ACID
- HYDROFLUORIC ACID [MART.]
- Hydrofluoric acid, 55%, CP
- Hydrofluoric acid, LR, 39-43%
- Hydrofluoric acid, anhydrous
- Hydrofluoricum acidum
- Hydrofluoride
- Hydrogen fluoride
- Hydrogen fluoride (HF)
- Hydrogen fluoride, anhydrous
- Hydrogenfluorid
- Rubigine
- [2H]hydrogen fluoride
- [HF]
- fluorane
- fluoric acid
- fluoridohydrogen
- fluoroorganic compound
- fluoroorganics
- fluororganische Verbindungen
- fluorum
- fluorure d'hydrogene
- hydrogen flouride
- hyrofluoric acid
- organofluorine compound