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

Substance propazine					Other names

Formula:  C9H16ClN5					CAS-No.: 139-40-2	PubChem: CID 4937

Study: photodecomposition, UV absorption spectrum, quantum yields


Authors: W.-U. Palm, C. Zetzsch

Title: Investigation of the photochemistry and quantum yields of triazines using polychromatic irradiation and uv-spectroscopy as analytical tool

Journal/Source: Intern. J. Environ. Anal. Chem., 65, 313 - 329, (1996); DOI: 10.1080/03067319608045564


Data: table, diagram

Energy/Wavelength range: 200 - 296 nm

Resolution: 1 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration:

Phase: solution (water/5% acetonitrile)

pH: 7 - 9


Comments: Photochemical reactions of atrazine, propazine, simazine, terbuthylazine, ametryn and atraton were investigated in aqueous and 
buffered (pH=7–9) solutions (containing a few percent of acetonitrile). Quantum yields in aqueous solutions for the chlorotriazines 
(Phi=0.048-0.062) and for ametryn (Phi=0.043) are comparable.