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: photochemistry, absorption spectrum, quantum yields


Authors: F.D. Pope, C.A. Smith, P.R. Davis, D.E. Shallcross, M.N.R. Ashfold, A.J. Orr-Ewing

Title: Photochemistry of formaldehyde under tropospheric conditions

Journal/Source: Faraday Discuss., 130, 59-72, (2005); DOI: 10.1039/b419227c


Data: diagram

Energy/Wavelength range: 308 - 320 nm

Resolution: 0.001 nm

Temperature: 294 K

Temperature dependence: no

Pressure/Concentration:

Phase:

pH:


Comments: Absorption cross sections and photochemical quantum yields
for radical (H + HCO) production from formaldehyde in the wavelength interval from 308
- 320 nm, obtained at resolutions of better than 0.1 nm. The absorption cross sections,
measured at resolutions close to the limit for Doppler broadening of HCHO.
In this wavelength region, absorption cross sections peak at 2.3 x 10-19 cm2 molecule-1.

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