Related Experiment Video
Updated: Jul 15, 2026

Analysis of Volatile and Oxidation Sensitive Compounds Using a Cold Inlet System and Electron Impact Mass Spectrometry
Published on: September 5, 2014
Material balance analysis of trichlorofluoromethane and carbon tetrachloride in the atmosphere
Abstract:
Using the historical worldwide emission and monitoring data on trichlorofluormethane, a transfer constant (0.03 yr-1) was evaluated for the movement of the gas from the troposphere to the stratosphere. The movement between the northern and southern troposphere was estimated from literature data on other gases to be 0.6 yr-1. The flux between the ocean and air was calculated using water solubility and vapor pressure measurements. These transfer constants were then combined in a dynamic material balance model which has the capability of predicting furture trends. The procedure was then applied to a similar set of data for carbon tetrachloride. The agreement between the calculated atmospheric and water concentration for carbon tetrachloride was within 20% of the actual experimental observation thus lending credence to this type of budgetary analysis.
More Related Videos
Related Concept Videos
Atomic Mass
Half-life of a Reaction
Radical Substitution: Halogenation of Alkanes and Alkyl Substituents
In the initiation step of the reaction, the chlorine molecule undergoes homolytic cleavage in the presence of light or heat, forming two highly reactive chlorine radicals. Propagation occurs in two...
Mass Spectrometry: Isotope Effect
Mass Spectrometry: Alkyl Halide Fragmentation
Phase Diagrams of Ternary Systems

