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Potassium Isotopes

Stable Potassium Isotopes - K Isotopes
Nominal mass Accurate
% Natural abundance Chemical
Enrichment available %

39 K 38.9637074 (12) 93.2581 (44) sulphate, chloride 98 - 99+

41 K 40.9618254 (12) 6.7302 (44) chloride 95 - 98+
Although Potassium only has two stable isotopes (K-39 and K-41), the long-lived radioisotope K-40 is often also regarded as a stable isotope. Potassium Isotopes, mainly K-40 and K-41, are used to study the impact of potassium on the growth of plants and of the human cardiovascular system.
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