Trace Sciences International

Chromium Isotopes

Nominal Mass
Accurate Mass
% Natural Abundance
Chemical Form
Enrichment Available %

50 Cr

49.9460464 (17)
4.345 (13)
metal, oxide
90 – 96+

52 Cr

51.9405098 (17)
83.789 (18)
metal
99+

53 Cr

52.9406513 (17)
9.501 (17)
oxide
97+

54 Cr

53.9388825 (17)
2.365 (7)
oxide
94+

Several Chromium Isotopes are used for medical applications. Cr-50 is used for the production of the radioisotope Cr-51 which is used for measuring blood volume and red blood cell survival. Cr-53 and Cr-54 are used for the study of chromium metabolism and studies into (adult) diabetes.