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- W2388280853 abstract "The paper is aimed at introducing our study of safety behaviors of the base materials(sodium chlorate, sodium chlorite, marked as 0# and 1# respectively)intended to be applied for chlorine dioxide preparation in hoping to reduce and even to avoid hazards and risks in their production. As is known, the base materials as those above mentioned are characterized by theirmechanical sensitivity, electrostatic sensitivity and thermal safety sensitivity when they were experimented or transported due to friction and impact, or other mechanical interactions. Coming from such particular reasons, we have put our stress on the sensitivity influences given by such devices as sensitivity instruments, the electric sparks and differential scanning calorimeters(DSC)as well as the influence of doping on mechanical sensitivity and electrostatic sensitivity. Experimental results we have gained from our systematic testing and measurements can be shown as follows: the two sampleswithoutdopingwere found of highermechanical safety performance and lower explosion risks. When doping with resin, oil orwood powder, the logarithmic of characteristic height of 0# sampleswere found to be 1.642,1.688,1.758 respectively and the exploding probability of 0# samples tend to 0.72, 0, 0.64, respectively. In comparison, the logarithmic of characteristic heights of 1# sampleswere found to be 1.427,1.354,1.447 respectively and the exploding probability of 1# samples— 0.92,0,0.88 respectively. Thus, it can be said that both of them are prone to the explosion hazards and their mechanical sensitivities also tend to rise after doping. When the doping ratios of wood powder and 0#/1# samples were 1:10, 1:5, 1:2,with the increase of doping rate ofwood powder, the logarithmic of characteristic height of 0# samples tend to lowerfrom 1.758 to 1.715 whereas their explosion probability tends to increase from 0.64 to 0.8, The logarithmic of the characteristic height of 1# samples tends to rise from1.447 to 1.522 and theirexplosion likeliness tends to go up from 0.88 to 1. And, accordingly, with the increase of the doping ratio of wood powder(rising from 1: 10 to 1:2), the impact sensitivity of 0# samples tends to rise whereas that of samples 1# tends to decrease, though the friction sensitivity of both can be found elevated.Moreover, the sodium chlorite has also been found more sensitive to the impact and friction than those of sodium chlorate. The two samples and their doping mixture with three dopants were not sensitive to the static electricity. For example, within the temperature range of 0-300 ℃, no exothermic peaks cropped up with 0# samples, except for the only endothermic peak. There were two exothermic peaks cropped up in 1# samples, with the initial exothermal temperatures of samples 1# being 167℃ and 207.21 ℃, and their enthalpy changes of samples 1# being 519.795 6 J/g and 301.525 8 J/g. Therefore, sodium chlorite can be said more prone to accumulate the temperature, and likely to lead to heat explosion. On the other hand, within the same temperature range, sodium chlorate tends to be comparatively safer and behave higher thermostatically safer." @default.
- W2388280853 created "2016-06-24" @default.
- W2388280853 creator A5081004407 @default.
- W2388280853 date "2014-01-01" @default.
- W2388280853 modified "2023-09-23" @default.
- W2388280853 title "On the safety of base materials of solid chlorine dioxide preparation" @default.
- W2388280853 hasPublicationYear "2014" @default.
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