Experimental analysis and research on the combustion supporting characteristics of sodium chlorite
In order to study fire prevention measures for sodium chlorite,firstly,the combustion-supporting characteristics of so-dium chlorite under different ignition sources and humidity condi-tions were studied through simulation experiments.Secondly,ion chromatography is employed to measure the content of ClO-2 in the combustion residues,thereby quantitatively analyzing the combustion-supporting effect of sodium chlorite.Finally,fire pre-vention design strategies for sodium chlorite are formulated based on the investigations above.The results show that when a ciga-rette butt is used as an ignition source,sodium chlorite can cause most of combustible materials to burn,with the greatest pro-nounced effect observed on sulfur-containing substances and po-tassium sorbate.When mechanical sparks are used as ignition sources,sodium chlorite can promote the combustion of sulfur-containing substances,preservatives as well as porous combus-tibles,but it is difficult to promote the combustion of fabrics with dense structure.When an incandescent light is used as an ignition source,sodium chlorite can only facilitate the combustion of a few strong reducing agents.However,when an electric heater is used as an ignition source,sodium chlorite fails to cause the combus-tion of any of the experimental samples.In addition,when a drop of water is used as an ignition source,sodium chlorite can cause the combustion of sulfur-containing organic compounds or reduc-tive sulfur-containing substance.Samples mixed with sulfur and sodium sulfide can even undergo deflagration under humidity con-ditions ranging from 33.1% to 97.6% .This paper can provide some reference for fire prevention requirements in production,storage and transportation of sodium chlorite.
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