Hydrofluoric acid
SIGALD/30107 - puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥48%
Synonym: HF
CAS Number: 7664-39-3
Empirical Formula (Hill Notation): HF
Molecular Weight: 20.01
EC Number: 231-634-8
MDL Number: MFCD00011346
Linear Formula: HF
Product Type: Chemical
agency | reag. ISO |
reag. Ph. Eur. | |
anion traces | chloride (Cl-): ≤1 mg/kg |
phosphate (PO43-): ≤0.5 mg/kg | |
sulfate (SO42-): ≤2 mg/kg | |
sulfite (SO32-): ≤2 mg/kg | |
assay | ≥48% |
cation traces | Ag: ≤0.02 mg/kg |
Al: ≤0.05 mg/kg | |
As: ≤0.05 mg/kg | |
Ba: ≤0.1 mg/kg | |
Be: ≤0.02 mg/kg | |
Bi: ≤0.1 mg/kg | |
Ca: ≤0.5 mg/kg | |
Cd: ≤0.01 mg/kg | |
Co: ≤0.02 mg/kg | |
Cr: ≤0.02 mg/kg | |
Cu: ≤0.02 mg/kg | |
Fe: ≤0.2 mg/kg | |
Ge: ≤0.05 mg/kg | |
K: ≤0.1 mg/kg | |
Li: ≤0.02 mg/kg | |
Mg: ≤0.2 mg/kg | |
Mn: ≤0.05 mg/kg | |
Mo: ≤0.05 mg/kg | |
Na: ≤0.2 mg/kg | |
Ni: ≤0.02 mg/kg | |
Pb: ≤0.05 mg/kg | |
Sr: ≤0.02 mg/kg | |
Ti: ≤0.1 mg/kg | |
Tl: ≤0.05 mg/kg | |
V: ≤0.05 mg/kg | |
Zn: ≤0.05 mg/kg | |
Zr: ≤0.1 mg/kg | |
density | 1.15 g/mL at 25 °C (lit.) |
form | liquid |
grade | ACS reagent |
puriss. p.a. | |
ign. residue | ≤0.0005% (as SO4) |
impurities | ≤0.005% hexafluorosilic acid (H2SiF6) |
InChI | 1S/FH/h1H |
InChI key | KRHYYFGTRYWZRS-UHFFFAOYSA |
Quality Level | 200 ![]() |
SMILES string | [H+].[F-] |
vapor density | 1.27 (vs air) |
vapor pressure | 25 mmHg ( 20 °C) |
Application: |
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General description: | Hydrofluoric acid (HF) is a strong inorganic acid that is commonly used as a source of fluorine for the production of organofluorine compounds and inorganic fluorides. It is also used as a deprotecting reagent in organic synthesis. Additionally, it is also used for breaking strong Si-O bonds to form SiF6− 2 ions in an acidic solution. |
Packaging: | 1 L in poly bottle |
Packaging: | 500 mL in poly bottle |
Symbol | ![]() ![]() ![]() ![]() |
Signal word | Danger-Danger |
Hazard statements | H300 + H310 + H330 - H314 - H300 + H310 + H330 - H314 |
Precautionary statements | P260 - P280 - P260 - P270 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P303 + P361 |
Hazard Codes | T+,C |
Risk Statements | 26/27/28-35 |
Safety Statements | 7/9-26-36/37/39-45 |
RIDADR | UN 1790B 6.1(8) / PGII |
WGK Germany | WGK 2 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥48% |
Density | 1.15 g/mL at 25 °C (lit.) |
UNSPSC | 12352106 |