13C and 33,34S isotope effects on the vapour pressure of liquid carbon disulfide
Open Access
- 1 October 1976
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 54 (19) , 3007-3011
- https://doi.org/10.1139/v76-426
Abstract
Precision isotope ratio mass spectrometry has been used to determine the relative vapour pressures of the four principal isotopic species of liquid carbon disulfide. Relative to the principal species 12C32S32S = 1.000000, the vapour pressures of the other species are: 12C32S34S = 0.999855, and 13C32S32S = 1.00162. A value of 0.999927 for 12C32S33S is deduced by application of the rule of the geometric mean. The results are invariant with temperature between −20 and +56 °C. Qualitatively similar effects have been reported earlier for 13C and 18O substitution in 12C16O2, a chemical analogue of CS2.Keywords
This publication has 0 references indexed in Scilit: