南通职业大学学报2025，Vol.39Issue(1)：89-93,5.DOI:10.3969/j.issn.1008-5327.2025.01.017
杂质作用下丁酮肟盐酸盐的热危险性研究
Thermal Hazard Assessment of Methyl Ethyl Ketoxime Hydrochloride under the Influence of Impurities
张玉雯 1杨林娟2
作者信息
- 1. 南通理工学院 安全与应急管理学院,江苏 南通 226601
- 2. 南通理工学院 安全与应急管理学院,江苏 南通 226601||南通职业大学 机械工程学院,江苏 南通 226007
- 折叠
摘要
Abstract
To evaluate the thermal hazard of methyl ethyl ketoxime hydrochloride(MEKOH)through differential scanning calorimetry(DSC)to quantify impurity effects on decomposition characteristics,based on the thermal analysis of pure MEKOH decomposition,water and methyl ethyl ketoxime(MEKO)are selected as impurity additives for fundamental calorimetric tests.The DSC testing results demonstrate two distinct decomposition regimes:The presence of water reduces the initial decomposition temperature of MEKOH,significantly decreases the heat release,downgrading its hazard level to Class 1,which indicates that moderate humidity enhances the storage and transportation safety of MEKOH.The introduction of MEKO drastically compromises thermal stability,shifting MEKOH's initial decomposition temperature range to 50.5～81.2℃,and inducing multiple consecutive exothermic peaks with the maximum peak heat release of 425.6～553.2 kJ/kg,which elevates the hazard level to Class 2.These findings mandate strict control to MEKO residues in the production,and recommend safety measures to prevent the chain triggering of multi-stage exothermic reactions during the industrial handling.关键词
丁酮肟盐酸盐/热危险性/差示扫描量热法/危险等级Key words
methyl ethyl ketoxime hydrochloride(MEKOH)/thermal hazard/Differential Scanning Calorimetry/hazard level分类
化学化工引用本文复制引用
张玉雯,杨林娟..杂质作用下丁酮肟盐酸盐的热危险性研究[J].南通职业大学学报,2025,39(1):89-93,5.
