Registration Dossier
Registration Dossier
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EC number: 941-593-4 | CAS number: 1623405-26-4
Sediment toxicity
Administrative data
Link to relevant study record(s)
- Endpoint:
- sediment toxicity: long-term
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
- Executive summary:
Aquatic PNEC is used to calculate the benthic PNEC using a Kpsed of 50000 L/kg.
Reference
Description of key information
PNEC for benthic organisms is calculated applying the equilibrium partitioning method using a Kpsed (or Kdsed) of 7972 L/kg
Key value for chemical safety assessment
Additional information
Distribution constants for Di-C16 -18 Tetramine
Kpsoil |
3986 L/kg |
Ksoil-water |
5979 m3/m3 |
Kpsusp |
7972 L/kg |
Ksusp-water |
1993 m3/m3 |
Kpsed |
3986 L/kg |
Ksed-water |
1993 m3/m3 |
The PNECsed is then calculated using the equations detailed in REACH guidance R.16:
PNECsed = Ksusp-water* PNECaquatic dissolved* 1000 * 1 / RHOsusp
Where: PNECaquatic = 1 µg/L
Ksusp-water = 1993 m3/m3
RHOsusp = 1150 kg.m-3(TGD, equ. 18)
PNECsed-EPM = 1.733 mg/kg ww
= 7.97 mg/kg dw
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