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

Substance: nitrous oxide				Other Names: 

Formula: N2O						CAS-No.: 10024-97-2

Study: absorption cross sections


Authors: N. Rontu Carlon, D. K. Papanastasiou, E.L. Fleming, C.H. Jackman, P.A. Newman, J.B. Burkholder

Title: UV absorption cross sections of nitrous oxide (N2O) and carbon tetrachloride (CCl4) between 210 and 350K and the atmospheric implications

Journal/Source: Atmos. Chem. Phys., 10, 6137-6149, (2010); doi:10.5194/acp-10-6137-2010


Data: table, diagram

Energy/Wavelength range: 184.95, 202.548, 206.200, 213.857, 228.8 nm

Resolution: 

Temperature: 210 - 350 K

Temperature dependence: yes

Pressure/Concentration:

Phase: gas

pH:


Comments: Absorption cross sections of nitrous oxide (N2O) and carbon tetrachloride (CCl4) are reported at five atomic
UV lines (184.95, 202.548, 206.200, 213.857, and 228.8 nm) at temperatures in the range 210-350 K. In addition, UV absorption
spectra of CCl4 are reported between 200–235 nm as a function of temperature (225-350 K).
The N2O absorption cross section at 185 nm is given by the expression:
sigma(184.95 nm) (T) = 1.0033×10^-19 + 6.1561×10^23×T + 2.6583×10^-25×T^2
with sigma at 185nm (298 K)=1.4×10^-19 cm2 molecule-1 and an absolute uncertainty of 2%.

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