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

Substance: methyl nitrate				nitric acid, methyl ester	

Formula: CH3NO3; CH3ONO2				CAS-No.: 598-58-3

Study: photolysis, quantum yield, uv absorption spectrum
                

Authors: R.K. Talukdar, J.B. Burkholder, M. Hunter, M.K. Gilles, J.M. Roberts, A.R. Ravishankara 

Title: Atmospheric fate of several alkyl nitrates

Journal/Source: J. Chem. Soc. Faraday Trans., 93, 2797-2805, (1997); DOI: 10.1039/A701781B 


Data: table, diagram

Energy/Wavelength range: 236 - 344 nm

Resolution: 2 nm

Temperature: 298 K

Temperature dependence: yes

Pressure/Concentration:

Phase:

pH:


Comments: The UV absorption cross-sections of methyl, ethyl and isopropyl nitrate between 233 and 340 nm have been 
measured using a diode array spectrometer in the temperature range 240–360 K. The absorption cross-sections of these 
alkyl nitrates decrease with increasing wavelength and decrease with decreasing temperature for lambda > 280 nm. The 
photodissociation quantum yield for CH3ONO2 to produce NO2 and CH3 O was found to be essentially unity at 248 nm.
The temperature dependent absorption cross-sections were parameterized. This parameterization reproduces 
the measured values to within 1 % for wavelengths < 330 nm.

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