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

Substance: formaldehyde					Other Names: methanal; methylene oxide

Formula: CH2O						CAS-No.: 50-00-0

Study: absorption cross sections


Authors: P. Morajkar, C. Schoemeacker, C. Fittschen

Title: Absolute absorption cross sections for two selected lines of formaldehyde around 6625 cm-1

Journal/Source: J. Mol. Spectroscopy, 281, 18-23, (2012); http://dx.doi.org/10.1016/j.jms.2012.10.004


Data: diagram, table

Energy/Wavelength range: ~ 6625 cm-1 (~ 1509 nm)

Resolution: 0.05 cm-1

Temperature: 

Temperature dependence: no

Pressure/Concentration: 14.5 and 66 mbar

Phase: gas

pH:


Comments: Absolute absorption cross sections of formaldehyde, CH2O, have been measured at total pressures of 14.5 and 66 mbar 
Helium by cw-CRDS for two selected lines at around 6625 cm-1. The line strengths for the lines at 6624.779 cm-1 and 6625.248 cm-1 
have been found to be (9.1 ± 1.8) × 10-24 cm and (5.3 ± 1.0) × 10-24 cm, respectively.

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