Trace Sciences International

Chlor­ine Isotopes

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

35 Cl

34.968852721 (69)
75.78 (4)
KCI, NaCl, BaCl2
88 – 99+

37 Cl

36.96590262 (11)
24.22 (4)
KCl
42 – 99+

Chlorine Isotopes Cl-35 and Cl-37 are used to study the toxicity of environmental pollutant and are usually supplied in the form of NaCl and KCl