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[1]徐泽龙,陈斐,黄凌志,等.气相色谱-质谱法测定偏二甲肼长期贮存的氧化产物[J].火炸药学报,2018,41(5):523-530.[doi:10.14077/j.issn.1007-7812.2018.05.018]
 XU Ze-long,CHEN Fei,HUANG Ling-zhi,et al.Determination of Oxidation Products Generated in the Long-term Storage of Unsymmetrical Dimethylhydrazine by Gas Chromatography-mass Spectrometry[J].,2018,41(5):523-530.[doi:10.14077/j.issn.1007-7812.2018.05.018]
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气相色谱-质谱法测定偏二甲肼长期贮存的氧化产物()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第5期
页码:
523-530
栏目:
出版日期:
2018-10-31

文章信息/Info

Title:
Determination of Oxidation Products Generated in the Long-term Storage of Unsymmetrical Dimethylhydrazine by Gas Chromatography-mass Spectrometry
作者:
徐泽龙 陈斐 黄凌志 郭伟沯
1. 中国酒泉卫星发射中心, 甘肃 酒泉 732750;
2. 陆军北京军事代表局447厂军事代表室, 内蒙古 包头 014000
Author(s):
XU Ze-long CHEN Fei HUANG Ling-zhi GUO Wei-qiang
1. Jiuquan Satellite Launch Centre, Jiuquan Gansu 732750, China;
2. 447 Factory Military Representatives Office of Beijing Representatives Bureau, Baotou Mongolia 014000, China
关键词:
分析化学偏二甲肼UDMH氧化产物反应机理气相色谱-质谱GC-MS
Keywords:
analytical chemistryunsymmetrical dimethylhydrazine(UDMH)oxidation productreaction mechanismgas chromatography-mass spectrometryGC-MS
分类号:
TJ55;O656
DOI:
10.14077/j.issn.1007-7812.2018.05.018
文献标志码:
-
摘要:
为分析偏二甲肼(UDMH)实际贮存期间的氧化产物及氧化机理,采用气相色谱-质谱(GC-MS)法监测了偏二甲肼在氧气、空气和氮气(实际贮存气)3种贮存条件下氧化产物的种类和质量浓度变化,并分析了实际贮存条件下的氧化机理。结果表明,偏二甲肼的氧化产物有12种,其中二甲胺、二甲基二氮烯和甲醛为主要中间产物,亚硝基二甲胺、偏腙、乙醛二甲基腙、四甲基四氮烯、二甲氨基乙腈和二甲基甲酰胺为主要氧化产物,氧气含量的降低会使二甲胺、亚硝基二甲胺、二甲氨基乙腈和二甲基甲酰胺4种氧化产物质量浓度分别降低60.2%、95.2%、80.0%和78.7%,但对二甲基二氮烯、四甲基四氮烯、甲醛、偏腙和乙醛二甲基腙这5种氧化产物的生成规律影响不大,仅使其生成速率降低28.5%~83.3%,并且氧气含量对氧化产物的种类没有影响;在实际贮存条件下,氯胺在氧化反应中起重要作用。
Abstract:
To analyze the oxidation products and mechanism during actual storage of unsymmetrical dimethylhydrazine(UDMH), the change of types and mass concentrations of oxidation products of UDMH under the three kinds of storage conditions of oxygen, air and nitrogen (actual storage gas) was monitored by gas chromatography-mass spectrometry (GC-MS) and the oxidation mechanism under the actual storage conditions was analyzed. The results show that there are 12 kinds of oxidation products of UDMH, among them, dimethylamine, dimethyl diazene and formaldehyde are the main intermediate products, while oxidation products mainly include N-nitroso dimethylamine, formaldehyde dimethylhydrazone, acetaldehyde dimethylhydrazone, methyl tetrazene, dimethylamine acetonitrile and dimethylformamide. The decrease of oxygen content makes the mass concentrations of four kinds of oxidation products, dimethylamine, N-nitroso dimethylamine, dimethylamino acetonitrile and dimethylformamide, reduce by 60.2%, 95.2%, 80.0% and 78.7%, respectively, but has little influence on the formation rule of five kinds of oxidation products, dimethyl diazene, paraform, formaldehyde dimethylhydrazone, acetaldehyde dimethylhydrazone and tetramethyl tetrazole, it only makes the generation rates of them decrease by 28.5%-83.3% and the oxygen content has no effect on the number of oxidation products. Under actual storage conditions, chloramine plays an important role in the oxidation reaction.

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备注/Memo

备注/Memo:
收稿日期:2018-03-29;改回日期:2018-06-08。
基金项目:原总装备部后勤重大科研项目基金(装后[2009]283号)
作者简介:徐泽龙(1990-),男,工程师,从事推进剂污染的治理研究。E-mail:422412620@qq.com
更新日期/Last Update: 1900-01-01