Quantitative Analysis of Aqueous NO2(-) and NO3(-) Solutions by Infrared Internal Reflection Spectroscopy

reportActive / Technical Report | Accession Number: AD0755750 | Open PDF

Abstract:

Infrared spectra of aqueous NO2- and NO3- solutions, and of binary mixtures, were recorded using internal reflection techniques and a Fourier transform spectrometer. NO2- could be detected at a concentration of 0.02 M, and NO3- at 0.001 M. However, NO3- also became adsorbed on the Ge prism. After making corrections for adsorption and for overlapping of NO2- and NO3- bands, it was possible to analyze binary mixtures with concentrations as low as NO3- 0.03 M and NO2- 0.05 M. By adjusting the optics so that the usually totally absorbing water stretching band had a transmittance of about 50, it was possible to observe N-H and C-H stretching bands of solutes. Dissolved materials cause distortions of the background which may influence qualitative and quantitative observations.

Author(s):
Yang, R. T. ; Low, M. J.
Author Organization(s):
NEW YORK UNIV NY DEPT OF CHEMISTRY
Descriptive Note:
Technical rept.
Supplementary Note:
DOI: 10.21236/AD0755750
Pagination:
0026

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
TR-4
Contract/Grant Number(s):
N00014-67-A-0467-0023
Project Number(s):
NR-056-515
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_8.2.4_Leverage Capacities and Capabilities of Security Establishments; JCA_8.2_Shape; JCA_8_Building Partnerships; JCA_5_Command and Control; JCA_5.3_Planning; JCA_6.4.1_Secure Information Exchange; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6.1_Information Transport; JCA_3.2.1_Kinetic Means; JCA_6.4_Information Assurance
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*NITRATES, *INFRARED SPECTRA, *QUANTITATIVE ANALYSIS, *NITRITES, ABSORPTION SPECTRA, SOLUTIONS(MIXTURES), INFRARED SPECTROSCOPY, MIXTURES
Field(s)/Group(s):
Atomic and Molecular Physics and Spectroscopy
Keyword(s):
*SPECTROSCOPIC ANALYSIS, FOURIER SPECTROSCOPY, INTERNAL REFLECTION, SPECTROSCOPY
Report Date:
1973 Jan 30