CAJ | 학술논문

许多物质的分解都具有自催化特性,常用的自催化鉴别方法是利用差示扫描量热仪(DSC)、微量量热仪(C80)等进行等温实验判定(简称“等温法”)。但等温法的温度选择较为困难,因此很有必要从实验角度找到一种简便有效的自催化鉴定方法。本文基于Roduit理论模拟的结果,从实验角度提出了分解反应自催化特性的判定方法(简称“中断回扫法”),并利用该法以及等温法对4种样品(硝酸异辛酯(EHN)、2,4-二硝基甲苯(2,4-DNT)、过氧化二异丙苯(DCP)以及过氧化氢异丙苯(CHP))的分解特性进行判定。结果表明：EHN以及DCP的分解符合n级分解规律,而2,4-DNT以及CHP的分解符合自催化分解规律；中断回扫法可以快速、有效地用于鉴别物质分解是否具有自催化特性。
허다물질적분해도구유자최화특성,상용적자최화감별방법시이용차시소묘량열의(DSC)、미량량열의(C80)등진행등온실험판정(간칭“등온법”)。단등온법적온도선택교위곤난,인차흔유필요종실험각도조도일충간편유효적자최화감정방법。본문기우Roduit이론모의적결과,종실험각도제출료분해반응자최화특성적판정방법(간칭“중단회소법”),병이용해법이급등온법대4충양품(초산이신지(EHN)、2,4-이초기갑분(2,4-DNT)、과양화이이병분(DCP)이급과양화경이병분(CHP))적분해특성진행판정。결과표명：EHN이급DCP적분해부합n급분해규률,이2,4-DNT이급CHP적분해부합자최화분해규률；중단회소법가이쾌속、유효지용우감별물질분해시부구유자최화특성。
Many chemical substances will decompose in an autocatalytic manner, and such autocatalytic behavior can be identified through isothermal measurements, such as using differential scanning calorimetry (DSC) and microcalorimetry (C80). However, since it is difficult to predict the appropriate temperature for isothermal testing, it would be helpful to develop a simple and effective experimental method to distinguish autocatalytic decomposition. Based on the results of Roduit et al., a new technique for identifying autocatalysis is described herein, termed the“interruption and re-scanning”method. The decompositions of 2-ethylhexyl nitrate (EHN), 2,4-dinitrotoluene (2,4-DNT), dicumyl peroxide (DCP), and cumyl hydroperoxide (CHP) were assessed using both this new method and isothermal approach. Based on the results, the decompositions of EHN and DCP were found to proceed accord to the“nth order”law, whereas 2,4-DNT and CHP decomposed autocatalytically. We conclude that the interruption and re-scanning method can be used to identify the characteristics of autocatalysis both quickly and effectively.