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EC number: 628-863-4 | CAS number: 1219458-14-6
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Half-live in sediment determined from TGD default values for readily biodegradable substances and with calculated Kpsoil
Key value for chemical safety assessment
- Half-life in soil:
- 30 000 d
- at the temperature of:
- 12 °C
Additional information
Biodegradation in soil
The Kpsoil was set to the maximum values as the observed Kd of 5.2*104L/kg is outside of the adviced range and set to max value of 50000 L/kg. The suggested half-life for a readily degradable substance with a Kpsoil in the range >10000 - <=100000 l/kg is 30000 days.These values are considered as extremely conservative but in the absence of measured data will be used in the exposure assessment as a worst-case. The half-life of the bioavailable fraction of alkyl dipropylene triamines in the water phase of soils is expected to be in the order of a few days, which is based on experiments with dialkyldimethylammonium salts (van Ginkel et al, 2003).
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