Interpreting the near infrared region of explosives

Authors
Zapata Arráez, FélixUniversity of Alcalá Author; Ferreiro González, Marta; García Ruiz, CarmenUniversity of Alcalá Author
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/47412
DOI: doi.org/10.1016/j.saa.2018.06.002
ISSN: 1386-1425
Date
2018-11-05
Affiliation
Universidad de Alcalá. Departamento de Química Analítica, Química Física e Ingiería Química
Bibliographic citation
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2018, v. 204, p. 81-87
Keywords
Explosives
Energetic powders
Near infrared spectroscopy
Combination region
Overtone.
Project
UAH-GP2018-2 (Universidad de Alcalá)
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© Elsevier, 2018
Access rights
info:eu-repo/semantics/openAccess
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Abstract
The NIR spectra from 1000 to 2500 nm of 18 different explosives, propellant powders and energetic salts were collected and interpreted. NIR spectroscopy is known to provide information about the combination bands and overtones of highly anharmonic vibrations as those occurring in XH bonds (CH, NH and OH). Particularly intense and complex were the bands corresponding to the first combination region (2500&#-1900&;8239#nm) and first overtone stretching mode (2nu) of CH and NH bonds (1750&#-1450&;8239#nm). Inorganic oxidizing salts including sodium/potassium nitrate, sodium/potassium chlorate, and sodium/potassium perchlorate displayed low intense or no NIR bands.
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