Registration Dossier
Registration Dossier
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EC number: 429-990-6 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis
A study equivalent to Directive 92/69/EEC method C.7 was conducted to determine the behaviour of Incozol LV in water, and under acidic and basic conditions investigated over time. Therefore, three stock solutions of Incozol LV were prepared (nominally 500 mg/L) in double distilled water (acidified, basified and unadjusted). These stock solutions were decanted into colour coded septum sealed vials (100 mL), and placed into a water bath set at 20 °C. Samples were then analysed at appropriate time intervals for both Incozol LV and the major degradation product. It was shown that under all conditions tested Incozol LV decomposed rapidly (total decomposition within 1 h). Furthermore, the major decomposition product could be analysed by gas chromatography and was shown to be stable under the conditions tested over a period of five days in a water bath set at 20 °C.
Biodegradation
Two studies were conducted to assess the biodegradability of the test item Incozol LV. In the CO2 evolution test according to OECD TG 301B and in the closed bottle test according to OECD TG 301 D the test item do not reach the threshold of degradation to fulfil the stringent criteria of OECD TG for readily biodegradation. According to ECHA Guidance IR/CSR chapter R.7B ‘Biodegradation above 20% of theoretical (measured as BOD, DOC removal or COD) may be regarded as evidence of inherent, primary biodegradability’. In the closed bottle test Incozol LV attained 26 % degradation after 28 days and in the CO2 evolution test 47 % degradation. Thus, Incozol LV is regarded as inherently biodegradable.
Adsorption/desorption
In accordance with Column 2 adaptation statement of REACH Annex VIII and IX, adsorption/desorption screening and further studies on adsorption/desorption, information requirements 9.3.1 and 9.3.3, may be omitted since the log Kow value for the test substance is <3.0 (CSR sections 1.3 and 4.2.1) and has low potential for adsorption. The log Pow of Incozol LV was determined to be 1.8 (see IUCLID section 4.7). Thus, no study was conducted.
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