Experimental results of accelerating rate calorimeter (ARC) and calculation results by the ASTM Chemical Thermodynamic and Energy Release Evaluation Program (CHETAH) were compared with literature data obtained from explosion propagation tests (BAM 50/60 steel tube tests or UN gap tests) in order to safely predict the explosibility of self-reactive materials. There is a mutual correlation between CHETAH criteria and the explosibility of self-reactive substances except in the cases of organic peroxides and azo compounds. There is also mutual correlation between maximum pressure per unit mol of substances measured by ARC and the explosibility of substances. Additionally, the temperature at maximum pressure rising rate is correlated with the explosibility of substances except in the case of nitro compounds.Consequently, the explosibility of self-reactive materials can be predicted by temperature and pressure measurements using ARC.
自己反応性物質の爆発性を安全に予測することを目的として，CHETAHの計算結果およびARCの測定結果と，伝爆性試験（BAM 50/60鋼管試験もしくはUN gap試験）の結果を比較し，CHETAHの計算結果の妥当性の評価およびARC測定による爆発性予測の可能性の検討を行った。CHETAHによる爆発性の予測では，アゾ化合物や有機過酸化物を除いて爆発性を予測できた。一方，ARCによって測定された試料のモル単位の最大圧力と伝爆性試験の結果とは明らかな相関が見られた。また，ニトロ化合物を除いて，最大圧力上昇速度を示す温度と伝爆性試験の結果には相関があった。これらの結果により，自己反応性物質の爆発性の予測にARCによる圧力測定が有用である可能性が示された。
explosibility, prediction, accelerating rate calorimeter, thermochemical calculations