USING THE STATIC HEADSPACE METHOD TO DETERMINE HENRY LAW CONSTANTS

A new, accurate, and experimentally simple method has been developed to determine dimensionless Henry's law constants using the static headspace method. The method appears applicable to a wide range of volatile and semivolatile organic compounds. The method worked well even for methyl tert-butyl ether (MTBE), despite its very high water solubility and hence, low Henry's law constant. The approach developed extends the usefulness of the static headspace method in obtaining real-time, accurate information for assessing environmental problems.