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 spectrum, quantum yields


Authors: P. Gorrotxategi Carbajo, S.C. Smith, A.-L. Holloway, C.A. Smith, F.D. Pope, D.E. Shallcross, A.J. Orr-Ewing

Title: Ultraviolet Photolysis of HCHO: Absolute HCO Quantum Yields by Direct Detection of the HCO Radical Photoproduct

Journal/Source: J. Phys. Chem. A, 112 (48), 12437-12448, (2008)


Data: table, diagram

Energy/Wavelength range: 300 - 330 nm

Resolution: 0.0035 nm

Temperature: 245 K; 294 K

Temperature dependence: yes

Pressure/Concentration: 200 Torr of N2 bath gas

Phase: gas

pH:


Comments: Absolute PHI(HCO) values were measured at seven wavelengths, lambda = 303.70, 305.13, 308.87, 314.31, 320.67, 325.59, and 329.51 nm.
High-resolution (spectral resolution ~ 0.0035 nm) measurements of absorption cross-sections of HCHO are presented.

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