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695068

Hydrofluoric acid

ACS reagent, 48%

Synonym(s):

HF

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About This Item

Linear Formula:
HF
CAS Number:
7664-39-3
Molecular Weight:
20.01
NACRES:
NA.21
PubChem Substance ID:
329761712
UNSPSC Code:
12352106
EC Number:
231-634-8
MDL number:
MFCD00011346
Assay:
48%
Form:
liquid
Grade:
ACS reagent
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grade

ACS reagent

Quality Segment

200

vapor density

1.27 (vs air)

vapor pressure

25 mmHg ( 20 °C)

assay

48%

form

liquid

impurities

≤0.5 ppm As (Arsenic), ≤0.5 ppm Pb (Lead)

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

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.

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pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

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

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Poisonous substance

pdsc

Class I Designated Chemical Substances

prtr

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

695068-25ML:4.548173293127E12 + 695068-500ML:4.548173293134E12

jan

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