43625-06-5

Usage

Uses

Used in Chemical Industry:
NITRIC ACID (15N) is used as a reagent for organic nitration reactions, where it plays a crucial role in the synthesis of various organic compounds, including explosives and other nitrogen-containing chemicals.
Used in Fertilizer Industry:
NITRIC ACID (15N) is used as a component in the production of fertilizers, specifically in the manufacture of ammonium nitrate and other nitrogen-based fertilizers. It helps to provide essential nitrogen to plants, promoting growth and development.

Upstream product

• 31432-45-8 sodium (¹⁵N)nitrate 
• 7664-93-9 sulfuric acid 
• 57654-83-8 [¹⁵N]-potassium nitrate 
• 13813-19-9 sulfuric acid-d2 
• 14184-22-6 ⁽¹⁵⁾N-nitrogen dioxide 
• 10028-15-6 ozone 
• 7697-37-2 [¹⁵N]-nitric acid 

Downstream Products

• 96513-25-6 sym-(15)NO3 

Relevant academic research and scientific papers

Analyses of the infrared absorption bands of 15NO3 in the 1850 - 3150 cm-1 region

We have observed the infrared spectrum of 15NO3 by a high resolution Fourier transform infrared (FT-IR) spectrometer using the reaction of F atoms with H15NO3. Five 2E' - 2A2' bands are identified in the 1850 - 3150 cm-1 region. The rotational analyses indicate that these bands have the lower state in common, which coincides with the ground state of planar D3h symmetry. The upper 2E' states more or less suffer from perturbations by close-lying dark states. Among them, those of the 2004, 2128, and 2492 cm-1 bands are analyzed to determine molecular parameters in these states by fixing the ground-state constants to those derived by a combination difference method. The spin - orbit and Coriolis coupling constants in the 2E' states are substantially different for different vibronic states. The vibrational assignments of NO3 in the ground electronic state are discussed using experimental data heretof ore available, supplemented by those obtained by the present study.

Infrared diode laser spectroscopy of the NO3 ν3 band

The N-O degenerate stretching band ν3 of the NO3 radical has been studied in the gas phase by infrared tunable diode laser spectroscopy.The NO3 radical was generated by the reaction of NO2 with an excess of O3.Zeeman modulation was employed to observe the paramagnetic absorption lines of 14NO3 and 15NO3 in the wavelength regions 1480-1500 and 1463-1479 cm-1, respectively.Only K = 3n (n denoting an integer) transitions were observed, and the N = even members were missing from the K = 0 manifold.These observations indicate that the N03 radical belongs to D3h symmetry in the ground electronic state.The observed spectrum was analyzed using a symmetric-top vibration-rotation Hamiltonian including the spin-rotation interaction.The main parameters thus obtained for 14NO3 are , all in cm-1 with one standard error in parentheses.Although these parameters well reproduced the observed spectrum, the following anomalous features were noted: ( 1 ) a large εcc spin-rotation interaction constant was required to explain the spin splittings for both the ν3 and ground states, (2) a higher-order vibration-rotation interaction term having Δk = +/- 4 and Δl = +/- 2 needed to be included, with the corresponding interaction constant t 3 larger than that of CHF3, and (3) the centrifugal distortion constants and the first order Coriolis coupling constant which were derived did not agree with those calculated assuming a reasonable force field.These anomalies were ascribed to the interaction with a low- lying excited electronic state and, to some extent, with a combination or overtone state.The N-O bond length was calculated from the B o rotational constant to be 1.240 Angstroem, in good agreement with an ab initio calculated value.