- Author
- DeRosa, M. I. | Litton, C. D.
- Title
- Embedded Hydrogen Chloride and Smoke Particle Characteristics During Combustion of Polyvinyl Chloride and Chlorinated Mine Materials.
- Coporate
- Bureau of Mines, Pittsburgh, PA
- Report
- RI 9368, 1991, 17 p.
- Keywords
- mine fires | hydrogen chloride | smoke | combustion | polyvinyl chloride | oxygen concentration | weight loss
- Abstract
- The U. S. Bureau of Mines performed experiments to determine the embedded hydrogen chloride and smoke particle characteristics during combustion of polyvinyl chloride and chlorinated mine materials for development of a test parameter. The experiments were conducted in an approximately 20-L furnace at set furnace temperatures of 250 deg and 1,000 deg C, for a 14-m,in duration, with an airflow through the furnace of 10 L/min. The variables studied, as a function of time, were hydrogen chloride embedded on smoke particles, hydrogen chloride concentrations in the gas phase, smoke particle average diameter and particle concentration, and product of smoke particle diameter and concentration. Other variables included carbon monoxide, carbon dioxide, and oxygen concentrations; sample mass weight loss; and furnace temperatures. Results show that there is a correlation between embedded hydrogen chloride, hydrogen chloride gas concentrtions, and inverse of the smoke particle diameter-cocentration product; the higher the hydrogen chloride gas concentrations, the higher the embedded hydrogen chloride, the higher the values. These correlations will enable development of a simple test parameter to assess the toxic hazard that these materials pose during fire.