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Hydrogen fluoride pyridine

Hydrogen fluoride pyridine chemical structure
CAS Number62778-11-4
FormulaC5H5N · (HF)x
Mol. Weight20.01 g/mol

What is Hydrogen fluoride pyridine?

Hydrogen fluoride pyridine is a chemical compound with CAS number 62778-11-4 and molecular formula C5H5N · (HF)x. It is used in various industrial and research applications.

Applications

Convenient form of anhydrous HF, stable up to 50°C. Has been used for the preparation of β-fluoroamines from amino alcohols and for the fluorination of acetylenes.1,2
Used together with hypervalent iodine(III) reagents for ipso-fluorination of para-substituted phenols providing cyclohexadienones.3 Employed with Selectfluor (Catalog No. 439479) for geminal fluorination of 2,2-diaryl-1,3-dithiolanes.4

Specifications

Linear Formula

C5H5N · (HF)x

Molecular Weight

20.01 g/mol

Density

1.1 g/mL at 20 °C(lit.)

Safety Information

GHS05GHS05
GHS06GHS06
Signal Word

Danger

Hazard Statements

H300-H310-H314-H330

Precautionary Statements

P260-P264-P280-P284-P301 + P310-P302 + P350

Required PPE

Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter

WGK Germany

3

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