NMR properties:

Magnetogyric Ratio NMR frequency Natural abundance (NA) Nuclear spin (I) Quadrupole moment (Q) Reference sample
39 K 1.2500610^7 rad/sT 4.66637MHz 93.258% 3.5 5.85fm²


39 K

(English, potash - pot ashes; L.. kalium, Arab qali, alkali) Discovered in 1807 by Davy, who obtained it
from caustic potash (KOH); this was the first metal isolated by electrolysis.
The metal is the seventh most abundant and makes up about 2.4% by weight of the earth's crust. Most
potassium minerals are insoluble and the metal is obtained from them only with great difficulty.
Certain minerals, however, such as sylvite, carnallite, langbeinite, and polyhalite are found in ancientlake
and sea beds and form rather extensive deposits from which potassium and its salts can readily be
obtained. Potash is mined in Germany, New Mexico, California, Utah, and elsewhere. Large deposits of
potash, found at a depth of some 3000 ft in Saskatchewan, promise to be important in coming years.
Potassium is also found in the ocean, but is present only in relatively small amounts, compared to