Registration Dossier
Registration Dossier
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EC number: 203-005-8 | CAS number: 102-09-0
Endpoint summary
Administrative data
Description of key information
Additional information
Stability
The calculated half-life of diphenyl carbonate in air due to indirect photo degradation is 4 days, considering an OH-concentration of 500 000 radicals/cm³ as a 24 h average, EPI-Suite (Currenta, 2008a).
No direct photo degradation of diphenyl carbonate is expected as absorption in the UV-B range is low (Hoyle, 1995).
Diphenyl carbonate hydrolyses under environmental conditions forming phenol and carbon dioxide. Environmentally relevant half-life is 39.9 h at pH 7 and 25 °C, EU Method C.7 (Bayer, 2001a).
Biodegradation
Diphenyl carbonate is not readily biodegradable. After 28 days, 37 % of the test substance was degraded in a closed bottle test, EU Method C.4-E (Bayer, 2000b).
Bioaccumulation
Diphenyl carbonate has a bioconcentration factor (BCF) of 64.77 L/kg, EPI-Suite software.
Transport and distribution
The organic-water partition coefficient (Koc) for diphenyl carbonate is 439, 740 and 3926, accepted calculation methods (Currenta, 2008a). This indicates a moderate to high potential for adsorption.
Diphenyl carbonate has a Henry's law constant of 0.23 Pa m³/mol, EPI-Suite (Currenta, 2008a WS/VP).
The main target compartment for diphenyl carbonate is water with 72 %, followed by soil and sediment with 11 % each, Mackay fugacity model level I (Currenta, 2008c).
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