science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: hydrazoic acid				Other Names: hydrogen azide

Formula: HN3						CAS-No.: 7782-79-8

Study: uv absorption spectrum

                
Authors: J.J. Orlando, G.S. Tyndall, E.A. Betterton, J. Lowry, S.T. Stegall

Title: Atmospheric chemistry of hydrazoic acid (HN3): UV absorption spectrum, HO· reaction rate, and reactions of the ·N3 radical

Journal/Source: Environ. Sci. Technol., 39, 1632-1640, (2005); DOI: 10.1021/es048178z


Data: table, diagram

Energy/Wavelength range: 215 - 365 nm

Resolution: 0.6 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration:

Phase: gas

pH:


Comments: The ultraviolet absorption spectrum of HN3 is shown to possess a maximum near 262 nm with a tail extending to at least 360 nm. 
The photolysis quantum yield for HN3 is shown to be approximately 1 at 351 nm.


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