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695068

Sigma-Aldrich

Hydrofluoric acid

ACS reagent, 48%

Sinonimo/i:

HF

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About This Item

Formula empirica (notazione di Hill):
HF
Numero CAS:
Peso molecolare:
20.01
Numero CE:
Numero MDL:
Codice UNSPSC:
12352106
ID PubChem:
NACRES:
NA.21

Grado

ACS reagent

Livello qualitativo

Densità del vapore

1.27 (vs air)

Tensione di vapore

25 mmHg ( 20 °C)

Saggio

48%

Stato

liquid

Densità

1.15 g/mL at 25 °C (lit.)

Anioni in tracce

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

Cationi in tracce

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

Stringa SMILE

[H+].[F-]

InChI

1S/FH/h1H
KRHYYFGTRYWZRS-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

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.

Applicazioni

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.

Pittogrammi

Skull and crossbonesCorrosion

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

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

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


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