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Embedded hydrogen chloride and smoke particle characteristics during combustion of polyvinyl chloride and chlorinated mine materials.

Authors
De Rosa-MI; Litton-CD
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9368, 1991 Jan; :1-13
Link
NIOSHTIC No.
10009161
Abstract
The U.S. Bureau of Mines performed experiments to determine the embedded hydrogen chloride (hcl) and smoke particle characteristics during combustion of polyvinyl chloride (pvc) 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-min 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 (dg) and concentration (no), and product of smoke particle diameter and concentration (dgno). Other variables included carbon monoxide (co), carbon dioxide (co2), and oxygen (o2) concentrations; sample mass weight loss; and furnace temperatures. Results show that there is a correlation between embedded hydrogen chloride, hydrogen chloride gas concentrations, and inverse of the smoke particle diameter-concentration product (1/dgno); the higher the hydrogen chloride gas concentrations, the higher the embedded hydrogen chloride, the higher the 1/(dgno) values. These correlations will enable development of a simple test parameter to assess the toxic hazard that these materials pose during fire.
Keywords
Safety; Toxicity; Chlorine; Hydrogen-chloride; Gas-analysis; Particle-size; Embedding; Mine-components; Time-dependence; Mine-fires; Combustion-products; Polyvinyl-chloride; Smoke; Indoor-air-pollution
Publication Date
19910101
Document Type
IH; Report of Investigations
Fiscal Year
1991
NTIS Accession No.
PB91230292
NTIS Price
A03
Identifying No.
RI-9368
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9368
State
PA
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