NMR properties:

Magnetogyric Ratio NMR frequency Natural abundance (NA) Nuclear spin (I) Quadrupole moment (Q) Reference sample
19 F 25.162310^7 rad/sT 94.094MHz 100% 0.5

CCLF

19 F
9

(L. and F. fluere, flow or flux) In 1529, Georigius Agricola described the use of fluorspar as a flux, and
as early as 1670 Schwandhard found that glass was etched when exposed to fluorspar treated with acid.
Scheele and many later investigators, including Davy, Gay-Lussac, Lavoisier, and Thenard,
experimented with hydrofluoric acid, some experiments ending in tragedy.
The element was finally isolated in 1866 by Moissan after nearly 74 years of continuous effort.