Registration Dossier
Registration Dossier
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EC number: 229-764-5 | CAS number: 6712-98-7
Endpoint summary
Administrative data
Description of key information
Additional information
According to column 2 of Annex VIII of REACh, a study assessing adsorption/desorption does not need to be conducted as DEIPA and its relevant degradation products decompose rapidly.
Henrys law constant has been estimated using the HENRYWIN (v3.20) program from EPISuite v4.10 (US EPA 2011) to be 5.55E-12 atm-m3/mole (2.27E-010 unitless, 5.62E-007 Pa-m3/mole) and 7.92E-019 atm-m3/mole (3.24E-017 unitless, 8.02E-014 Pa-m3/mole) by the bond contribution and group contribution methods, respectively.
As an approximation (stated within REACh guidance) if Henry's law constant is greater than 100 Pa. m3/mol, more than 50% of the substance could be lost from the water phase in 3-4 hr (ECHA, 2012d).
References
ECHA (2012d). European Chemicals Agency. Guidance on information requirements and chemical safety assessment. Chapter R.7b: Endpoint specific guidance. Version 1.2. November 2012. http://echa.europa.eu/documents/10162/13632/information_requirements_r7b_en.pdf
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