Further study on the photochemistry of non-ortho substituted PCBs by UV irradiation in alkaline 2-propanol.
The photochemical behaviors of six non-ortho substituted PCB congeners, i.e., 3,4-DiCB, 3,5-DiCB, 3,3',5-TriCB, 3,4,5-TriCB, 3,3',4,5-TetraCB, and 3,4,4',5-TetraCB, irradiated at 254 nm in alkaline 2-propanol were investigated. Besides the determination of the photodechlorination pathways of these compounds, the presence of photorearrangement was observed in the case of 3, 4-DiCB with its products being identified. The results indicate that dechlorination is much more important than rearrangement during the process of PCB photolysis.
Yao
Y
Y
Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, Tobata, Kitakyushu, Japan. yao@kan.ynu.ac.jp
Kakimoto
K
K
Ogawa
H I
HI
Kato
Y
Y
Kadokami
K
K
Shinohara
R
R
D019840:2-Propanol; D002713:Chlorine / Q000737:chemistry; D010777:Photochemistry; D011078:Polychlorinated Biphenyls / Q000737:chemistry*; D012997:Solvents; D014466:Ultraviolet Rays
D012997:Solvents; D002713:Chlorine; D011078:Polychlorinated Biphenyls; D019840:2-Propanol