Registration Dossier
Registration Dossier
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EC number: 500-066-5 | CAS number: 28961-43-5 1 - 6.5 moles ethoxylated
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.002 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.019 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.002 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.038 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.004 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.006 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
PNEC aqua:
The PNEC aqua was derived on the basis of the lowest acute toxicity test (LC50 or EC50) for all 3 trophic levels (fish, daphnia , algae) and applying an assessment factor of 1000. The PNEC aqua base on the test for acute toxicity in fish : PNEC aqua = 1.95 mg/l/ 1000 = 0.00195 mg/l
PNEC marine aqua: The PNEC marine aqua was derived on the basis of the lowest acute toxicity test (LC50 or EC50) for all 3 trophic levels (fish, daphnia , algae) and applying an assessment factor of 10000. The PNEC aqua base on the test for acute toxicity in fish : PNEC aqua = 1.95 mg/l/ 10000 = 0.000195 mg/l
PNEC aqua intermittent: The PNEC aqua intermittent was derived on the basis of the lowest acute toxicity test (LC50 or EC50) for all 3 trophic levels (fish, daphnia , algae) and applying an assess mentfactor of 100. The PNEC aqua intermittent base on the test for acute toxicity in fish : PNEC aqua = 1.95 mg/l/ 100 = 0.0195 mg/l
PNEC STP: The PNEC STP was derived on the basis of the acute toxicity test for aquatic microorganisms (OECD 209) and applying an assessment factor of 100. PNEC STP = EC50: >1000 mg/l/ 100 = 10 mg/l
PNEC sediment
The PNEC sediment was derived on the basis of the equilibrium partitioning method (REACH: Technical guidance document for preparing the chemical safety assessment: R10.6.3).
| PNECsediment= (Ksusp-water/Rhosusp) x PNECwaterx 1000 | ||||
| Ksusp-water | Rhosusp | PNECwater | PNECsediment | |
| PNECsediment | 4.86 | 1150 | 0.00195 | 0.00824468 |
| m3/m3 | kg/m3 | mg/L | mg/kg ww | |
PNEC marine sediment
The PNEC marine sediment was derived on the basis of the equilibrium partitioning method (REACH: Technical guidance document for preparing the chemical safety assessment: R10.6.3).
| PNECmarine-sediment= (Ksusp-water/Rhosusp) x PNECsaltwaterx 1000 | ||||
| Ksusp-water | Rhosusp | PNECsaltwater | PNECmarine sediment | |
| PNECmarine sediment | 4.86 | 1150 | 0.000195 | 0.00082447 |
| m3/m3 | kg/m3 | mg/L | mg/kg ww | |
PNEC soil
The PNEC soil was derived on the basis of the equilibrium partitioning method (REACH: Technical guidance document for preparing the chemical safety assessment: R10.7.1).
| RHOsoil= Fsolidsuspx RHOsolid+ Fwatersuspx RHO water+ Fairsuspx RHO air | air only relvant for soil | ||||||
| Fsolidsoil | RHOsolid | Fwatersoil | RHOwater | Fairsoil | RHO air | RHOsoil | |
| RHOsoil | 0.6 | 2500 | 0.2 | 1000 | 0.2 | 1.3 | 1700.26 |
| PNECsoil= (Ksoil-water/Rhosoil) x PNECwaterx 1000 | ||||
| Ksoil-water | Rhosusp | PNECwater | PNECsoil | |
| PNEC soil | 4.96 | 1700.26 | 0.00195 | 0.0057 |
| m3/m3 | kg/m3 | mg/L | mg/kg ww | |
Conclusion on classification
The minimum aquatic toxicity (acute) is in the range of 1 to 10 mg/l
The long-term toxicity is in the range 0.1 -1 mg/L (only data for algae are available)
The substance is readily biodegradable
The does not show a potential for bioaccumulation.
As a consequence of this, the substance should be classified with Chronic 3, H412
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