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EC number: 239-717-0 | CAS number: 15647-11-7
Table3. Percentage Biodegradation of Test Item and of the Toxicity Control based on ThODNO3, and of Sodium Benzoatebased on ThODNH4
Flask 1 [%]
Flask 2 [%]
Flask 5 [%]
Flask 7 [%]
1ThODNO3of Isophorone amino alcohol (IPAA): 2.989 mg O2/mg test item 2ThODNH4of sodium benzoate: 1.666 mg O2/mg reference item
The ready biodegradability of the test item was determined with non-adapted activated sludge in the Manometric Respirometry Test for a period of 28 days. The study was conducted according to OECD guideline 301 F and regulation 440/2008/EC C.4-D at IBACON GmbH, Rossdorf, Germany.
The oxygen was depleted by the respiration of bacteria and the degradation was followed by measuring the oxygen. The test item concentration selected as appropriate was 102.7 mg/L, corresponding to269.1 mg/L(ThODNH4). The biodegradation rate is expressed as the percentage BOD (biological oxygen demand) and was calculated for each study day.
The mean biodegradation at test end of the test af-ter 28 days was 0% (ThODNH4, ThODNO3). Therefore, the test item is considered to be not readily biodegradable. The validity criteria of the guideline are fulfilled.
The mean biodegradation at test end of the test af-ter 28 days was 0% (ThODNH4, ThODNO3). Therefore, the test item is considered to be not readily biodegradable.
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