The Organic Particulate Thermal Analysis of Dithiocarbamate, Isocyanate and Cyanoethylated Compounds

Abstract

The technique of Organic Particulate Thermal Analysis (OPTA) has been employed to investigate the thermal decomposition of a series of dithiocarbamate, isocyanate and cyanoethylated compounds; OPTA measures the temperature at which particulate or aerosol matter is emitted from a heated organic substance.

Of the 22 compounds investigated, 15 showed strong organoparticulation activity below 200°C. With the possible exception of three compounds, no obvious correlation exists between the OPTA values and the melting or decomposition point of the compound. To explain the organoparticulation activity of these compounds, the hydrogen-bonding of polar, molecular species, present in the particulate matter, appeared necessary.

Key Words:

• organic compounds
• particulate
• aerosol
• ion chamber detector
• thermal