CDBS和CSA与硝酸铵的相容性和物理作用-Compatibility and Physical Interaction of CDBS and CSA with AN

CDBS和CSA与硝酸铵的相容性和物理作用

2000,8(1):37-41

1.石油大学(华东)炼制系，山东东营 257062;2.西安近代化学研究所，陕西西安 710065

摘要：利用复分解反应制备了硝酸铵(AN)炸药示踪检测添加剂十二烷基苯磺酸铈(CDBS)和硬酯酸铈(CSA)。用元素分析、ICP-AES和FT-IR表征了CDBS和CSA。DSC和VST法研究结果表明，CDBS和CSA与AN是相容的。用SEM、ESCA和FT-IR观察了CDBS和CSA与AN 的相互作用，认为：固体CDBS 和CSA 可以自发地分散在AN颗粒表面，形成一层憎水膜，从而有效地防止AN的吸湿、结块，这一过程以物理吸附为特征。

关键词：硝酸铵(AN)；十二烷基苯磺酸铈(CDBS)；硬脂酸铈(CSA)；相容性；物理作用

Compatibility and Physical Interaction of CDBS and CSA with AN

LIU Jin-he¹, GAO Ren-xiao², HU Rong-zu²

1.Petroleum University (East China), Dongying 257062, China;2.Xi′an Modern Chemistry Research Institute, Xi′an 710065, China

Abstract：Two tracers used for detecting ammonium nitrate (AN) explosive,cerium (Ⅲ) n-dodycylbenzene sulfonate (CDBS) and cerium (Ⅲ) stearate (CSA), are prepared by using double decomposition reaction and characterized by using the elemental analysis,ICP-AES and FT-IR. The compatibility of CDBS and CSA with AN is tested by DSC and VST. The results show that the mixture of CDBS and CSA with AN is compatible. The interaction of CDBS and CSA with AN is examined by means of SEM, ESCA and FT-IR. It is found that CDBS and CSA in solid are spontaneously dispersed on the surface of AN,but the changes of bonding energy of N_1S (NO^-₃) and N_1S (NH⁺₄) in AN is not beyond 0.5 eV and there are not new functional group absorption peaks in IR spectra of AN containing CBDS or CSA. All these facts show that it is a process of physical adsorption, and the lipophilic layer formed thereof can efficiently decrease the hygroscopicity and caking of AN.

Key words：ammonium nitrate (AN); cerium (Ⅲ) n-dodycylbenzene sulfonate (CDBS); cerium (Ⅲ) stearate (CSA); compatibility; physical interaction

收稿日期：1999-04-19

基金项目：国家“九五”科技攻关项目(96-919-04-02)

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