Influence of crystalloid NaNO2 on safety of emulsion explosive

doi:10.11949/j.issn.0438-1157.20161621

CIESC Journal ›› 2017, Vol. 68 ›› Issue (5): 2211-2215.DOI: 10.11949/j.issn.0438-1157.20161621

Influence of crystalloid NaNO₂ on safety of emulsion explosive

WU Qiujie¹, CHEN Xiang², TAN Liu¹, LI Min¹, XU Sen^1,3, LIU Dabin¹

1 School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China;
2 Shanghai Entry-exit Inspection and Quarantine Bureau, Shanghai 200135, China;
3 National Quality Supervision Testing Center for Industrial Materials, Nanjing 210094, Jiangsu, China

Received:2016-11-15 Revised:2017-01-21 Online:2017-05-05 Published:2017-05-05
Supported by:
supported by the National Natural Science Foundation of China (51174120) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

结晶亚硝酸钠混入对乳化炸药安全性的影响

吴秋洁¹, 陈相², 谭柳¹, 李敏¹, 徐森^1,3, 刘大斌¹

1 南京理工大学化工学院, 江苏南京 210094;
2 上海出入境检验检疫局, 上海 200135;
3 国家民用爆破器材质量监督检验中心, 江苏南京 210094

通讯作者: 徐森
基金资助:
国家自然科学基金项目（51174120）；江苏高校优势学科建设工程资助项目。

Abstract

Abstract:

To study the unexpected interfusion of crystalloid sensitizer on the safety of emulsion explosive, Dewar test was employed for studying the influence of crystalloid sodium nitrite (NaNO₂) on the thermal stability of ammonium nitrate (AN), emulsion (ANE), and emulsion explosive (EE). The results show that when adding 10 g NaNO₂ into 400 g samples, the threshold temperature of samples are AN 40—45℃, EE 45—50℃, and ANE >100℃. The critical adding amounts of NaNO₂ for AN, EE and ANE are 1 g, 2 g and 10 g, respectively. The order of their thermal stability is accordingly as follows: AN< EE< ANE. The increasing water content in sample is helpful for the thermal stability of the sample systems with mixed NaNO₂.

Key words: crystalloid sodium nitrite, emulsion explosive, safety, influence, Dewar test

摘要：

为了研究结晶状敏化剂意外混入乳化炸药中的危险性，采用杜瓦瓶恒温试验法研究结晶状亚硝酸钠对硝酸铵、乳胶基质和乳化炸药热稳定性的影响。试验结果表明，在400 g样品中添加10 g亚硝酸钠的试验条件下，混合体系热稳定的临界温度范围分别为：硝酸铵40～45℃，乳化炸药45～50℃，乳胶基质则大于100℃。硝酸铵、乳化炸药和乳胶基质中的结晶亚硝酸钠临界添加量分别< 1 g，2 g和10 g。可见样品体系热稳定性：硝酸铵< 乳化炸药< 乳胶基质。样品含水量的增加可提高混有亚硝酸钠样品混合体系的热稳定性。

关键词: 结晶亚硝酸钠, 乳化炸药, 安全性, 影响, 杜瓦瓶恒温试验

CLC Number:

X937

WU Qiujie, CHEN Xiang, TAN Liu, LI Min, XU Sen, LIU Dabin. Influence of crystalloid NaNO₂ on safety of emulsion explosive[J]. CIESC Journal, 2017, 68(5): 2211-2215.

吴秋洁, 陈相, 谭柳, 李敏, 徐森, 刘大斌. 结晶亚硝酸钠混入对乳化炸药安全性的影响[J]. 化工学报, 2017, 68(5): 2211-2215.

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Influence of crystalloid NaNO₂ on safety of emulsion explosive

结晶亚硝酸钠混入对乳化炸药安全性的影响

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