Trace Sciences International

Cadmium Isotopes

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

106 Cd

105.906461 (7)

1.25 (6)

metal

76 – 96+

108 Cd

107.904176 (6)

0.89 (3)

metal

69 – 71+

110 Cd

109.903005 (4)

12.49 (18)

metal

94 – 95+

111 Cd

110.904182 (3)

12.80 (12)

metal

94 – 98+

112 Cd

111.902757 (3)

24.13 (21)

metal, oxide

86 – 98+

113 Cd

112.904400 (3)

12.22 (12)

metal, oxide

94 – 95+

114 Cd

113.903357 (3)

28.73 (42)

metal, oxide

98 – 99+

116 Cd

115.904755 (4)

7.49 (18)

metal, oxide

79 – 96+

The nine stable Cadmium Isotopes are used for many different purposes. Cd-110 is used for the production of the radioisotope In-110, while Cd-112 is used in the production of the widely used diagnostic radioisotope In-111. Cd-108 is used in the production of Cd-109 which is a calibration source for 88 keV gamma radiation. The even numbered Cadmium Isotopes (mainly Cd-110, Cd-112, Cd-114 and Cd-116) are used to improve the power output and coherence length of HeCd lasers.