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

Substance: chlorine nitrate				Other Names: 

Formula: ClONO2						CAS-No.: 14545-72-3

Study: uv absorption spectrum


Authors: J.B. Burkholder, R.K. Talukdar, A.R. Ravishankara

Title: Temperature Dependence of the ClONO2 UV Absorption Spectrum

Journal/Source: Geophys. Res. Lett., 21, 585-588, (1994); DOI: 10.1029/93GL03303


Data: table, diagram

Energy/Wavelength range: 190 - 460 nm

Resolution: 

Temperature: 220 - 298 K

Temperature dependence: yes

Pressure/Concentration: 

Phase: gas

pH:


Comments: The temperature dependence of the ClONO2 absorption spectrum has been measured between 220 and 298 K and 
between 195 and 430 nm. The absorption cross sections were determined using both: (1) absolute pressure measurements at 296 K 
and (2) measurements at various temperatures relative to 296 K using a dual absorption cell arrangement. The temperature dependence 
of the ClONO2 absorption spectrum shows very broad structure. The amplitude of the temperature dependence relative to that at 296 K 
is weak at short wavelengths, < 2% at 215 nm and 220 K, but significant at 325 nm and 220 K. The ClONO2 absorption cross section 
data are in good general agreement with the previous measurements of Molina and Molina [1979].

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