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

Substance: 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin	Other Names: 1,2,3,4,7,8-HxCDD

Formula: C12H2Cl6O2					CAS-No.: 39227-28-6	PubChem: 

Study: photolysis, quantum yields, uv absorption spectra


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

Title: Environmental photochemistry of PCDDs. Part I. Kinetics and quantum yields of the photodegration of 1,2,3,4,7-penta- and 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin in aqueous acetontrile

Journal/Source: Chemosphere, 14 (1), 9-26, (1985); http://dx.doi.org/10.1016/0045-6535(85)90038-4


Data: table, diagram

Energy/Wavelength range: 254 - 330 nm

Resolution: 

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 3.3275 x 10^-6 M

Phase: solution (water-acetonitrile, 4:6 v/v)

pH:


Comments: Quantum yields at 313 nm for 1,2,3,4,7-penta- and 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin  in aqueous acetonitrile (4:6 v/v) 
were (9.781 ± 2.376) 10-5 and (1.096 ± 0.020) × 10-4, respectively. In addition the absorption spectra are presented.

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