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695068

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Hydrofluoric acid

ACS reagent, 48%

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Synonym(s):
HF
Empirical Formula (Hill Notation):
HF
CAS Number:
Molecular Weight:
20.01
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

vapor density

1.27 (vs air)

vapor pressure

25 mmHg ( 20 °C)

assay

48%

form

liquid

density

1.15 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 ppm
phosphate (PO43-): ≤1 ppm
sulfate, sulfite (as SO42-): ≤5 ppm

cation traces

As: ≤0.05 ppm
Cu: ≤0.1 ppm
Fe: ≤1 ppm
heavy metals (as Pb): ≤0.5 ppm

SMILES string

[H+].[F-]

InChI

1S/FH/h1H

InChI key

KRHYYFGTRYWZRS-UHFFFAOYSA-N

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This Item
339261
Hydrofluoric acid ACS reagent, 48%

695068

Hydrofluoric acid

Hydrofluoric acid 48 wt. % in H2O, ≥99.99% trace metals basis

339261

Hydrofluoric acid

assay

48%

assay

≥99.99% trace metals basis

Quality Level

200

Quality Level

200

form

liquid

form

liquid

anion traces

chloride (Cl-): ≤5 ppm, sulfate, sulfite (as SO42-): ≤5 ppm, phosphate (PO43-): ≤1 ppm

anion traces

-

cation traces

As: ≤0.05 ppm, Fe: ≤1 ppm, Cu: ≤0.1 ppm, heavy metals (as Pb): ≤0.5 ppm

cation traces

-

General description

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. It is composed of hydrogen and fluoride. Hydrofluoric acid is a colorless and highly corrosive liquid. It is commonly used in the manufacture of hydrocarbons and polishing and conditioning glass. Additionally, it is used as a catalyst and in the synthesis of fluoride-containing compounds, and semiconductors.

application

Hydrofluoric acid solution can be used as a reagent to synthesize:
  • Cyanohydrin alkyl ethers via chiral Bronsted acid-mediated hydrocyanation of vinyl ethers with silyl cyanides.
  • N, N-Dimethylaniline hydrochloride salts via Pd-catalyzed Buchwald-Hartwig amination of aryl triflates with dimethylamines.
It can also be used as a catalyst for the amidation of carboxylic acids with amines to synthesize amides.

pictograms

CorrosionSkull and crossbones

signalword

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1A

Storage Class

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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Hydrofluoric acid
DW Jr S, et al.
Elsevier's Integrated Review Biochemistry (Second Edition) null
Hydrofluoric acid burns
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Chen JS and Lou XW.
Electrochemical Communications, 11(12), 2332-2335 (2009)
Eagleson M.
Concise Encyclopedia Chemistry, 508-508 (1994)

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