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

Substance: 1,3,6,8-tetrachlorodibenzo-p-dioxin		Other Names: 1,3,6,8-TCDD

Formula: C12H4O2Cl4					CAS-No.: 

Study: UV photodissociation, quantum yields


Authors: Ghulam Ghaus Choudhry, G.R.B. Webster

Title: Environmental photochemistry of PCDDs. 2. Quantum yields of the direct phototransformation of 1,2,3,7-tetra-, 1,3,6,8-tetra-, 1,2,3,4,6,7,8-hepta-, and 1,2,3,4,6,7,8,9-octachlorodibenzo-p-dioxin in aqueous acetonitrile and their sunlight half-lives

Journal/Source: J. Agric. Food Chem., 37 (1), 254-261, (1989); DOI: 10.1021/jf00085a059


Data: table

Energy/Wavelength range: 313 nm

Resolution: 

Temperature: 

Temperature dependence: 

Pressure/Concentration:

Phase:

pH:


Comments: The quantum yields at 313 nm for the direct phototransformation of the candidate PCDD isomers in these solvent 
systems were (5.42 ± 0.42) x 10-4, (2.17 ± 0.14) x 10-3, (1.53 ± 0.17) x 10-5, and (2.26 ± 0.33) x 10-5, respectively.

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